Tapered Button Bit

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 26mm to 48mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.

We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

The ball-tooth drill bit is composed of cemented carbide column teeth inlaid on the drill bit body. Compared with the chip drill bit, the ball tooth drill bit has free tooth arrangement, and the number and position of the edge and middle teeth can be reasonably determined according to the diameter of the chisel hole and the size of the rock breaking load, and the diameter of the drill bit is not limited. And because it is multi-point crushing, the rock-breaking efficiency is higher, which can effectively eliminate the blind area of rock-breaking and avoid the repeated crushing of cuttings. Its non-grinding life is longer and the regrinding workload is small. It shows high value under the operating conditions of rock trolley and deep hole mining.

The rock drilling tool is a tool for human beings to conquer rock and ore. Its structure is composed of a slender hollow drill pipe and a drill bit inlaid with rock drilling carbide. In the process of rock drilling, under the conditions of severe wear and tear of rock ores and erosion and corrosion of high-pressure water flow (or compressed air) and pit water, the drill rod and drill bit are subjected to various forces such as tension, compression, bending, and torsion, and the rock drill is 2000 per minute. The high frequency impact of ~3000 times, and the impact energy per impact is as high as 25J~500J, so the drill rod and drill bit often fail by stress corrosion fatigue fracture, and their service life is generally only ten minutes to dozens of hours. Therefore, rock drilling tools are a large number of consumable tools that are indispensable in basic industries with harsh stress conditions, short service life and high technical content among all human steel tools.

The ball-tooth drill bit is composed of cemented carbide column teeth inlaid on the drill bit body. Compared with the chip drill bit, the ball tooth drill bit has free tooth arrangement, and the number and position of the edge and middle teeth can be reasonably determined according to the diameter of the chisel hole and the size of the rock breaking load, and the diameter of the drill bit is not limited. And because it is multi-point crushing, the rock-breaking efficiency is higher, which can effectively eliminate the blind area of rock-breaking and avoid the repeated crushing of cuttings. Its non-grinding life is longer and the regrinding workload is small. It shows high value under the operating conditions of rock trolley and deep hole mining.

The rock drilling tool is a tool for human beings to conquer rock and ore. Its structure is composed of a slender hollow drill pipe and a drill bit inlaid with rock drilling carbide. In the process of rock drilling, under the conditions of severe wear and tear of rock ores and erosion and corrosion of high-pressure water flow (or compressed air) and pit water, the drill rod and drill bit are subjected to various forces such as tension, compression, bending, and torsion, and the rock drill is 2000 per minute. The high frequency impact of ~3000 times, and the impact energy per impact is as high as 25J~500J, so the drill rod and drill bit often fail by stress corrosion fatigue fracture, and their service life is generally only ten minutes to dozens of hours. Therefore, rock drilling tools are a large number of consumable tools that are indispensable in basic industries with harsh stress conditions, short service life and high technical content among all human steel tools.

Spherical tapered button bit Features
Ball-tooth tapered button bit has the characteristics of long service life, accurate positioning, coarse cuttings, low dust, durability and no need for grinding, etc. Compared with the traditional flaky tapered button bit, the drilling speed is faster, and the ball-tooth bit is passivated. Long, its non-grinding life is about 5-6 times that of the tapered button bit of the same diameter blade head, which is conducive to saving auxiliary man-hours, reducing manual labor of workers and speeding up engineering. Therefore, tapered button bit with taper connection and threaded connection of different diameters is widely used in various hard and brittle rocks with drilling rigs.

The ball-tooth drill bit is composed of cemented carbide column teeth inlaid on the drill bit body. Compared with the chip drill bit, the ball tooth drill bit has free tooth arrangement, and the number and position of the edge and middle teeth can be reasonably determined according to the diameter of the chisel hole and the size of the rock breaking load, and the diameter of the drill bit is not limited. And because it is multi-point crushing, the rock-breaking efficiency is higher, which can effectively eliminate the blind area of rock-breaking and avoid the repeated crushing of cuttings. Its non-grinding life is longer and the regrinding workload is small. It shows high value under the operating conditions of rock trolley and deep hole mining.

The rock drilling tool is a tool for human beings to conquer rock and ore. Its structure is composed of a slender hollow drill pipe and a drill bit inlaid with rock drilling carbide. In the process of rock drilling, under the conditions of severe wear and tear of rock ores and erosion and corrosion of high-pressure water flow (or compressed air) and pit water, the drill rod and drill bit are subjected to various forces such as tension, compression, bending, and torsion, and the rock drill is 2000 per minute. The high frequency impact of ~3000 times, and the impact energy per impact is as high as 25J~500J, so the drill rod and drill bit often fail by stress corrosion fatigue fracture, and their service life is generally only ten minutes to dozens of hours. Therefore, rock drilling tools are a large number of consumable tools that are indispensable in basic industries with harsh stress conditions, short service life and high technical content among all human steel tools.

Spherical tapered button bit Features
Ball-tooth tapered button bit has the characteristics of long service life, accurate positioning, coarse cuttings, low dust, durability and no need for grinding, etc. Compared with the traditional flaky tapered button bit, the drilling speed is faster, and the ball-tooth bit is passivated. Long, its non-grinding life is about 5-6 times that of the tapered button bit of the same diameter blade head, which is conducive to saving auxiliary man-hours, reducing manual labor of workers and speeding up engineering. Therefore, tapered button bit with taper connection and threaded connection of different diameters is widely used in various hard and brittle rocks with drilling rigs.

The ball-tooth drill bit is composed of cemented carbide column teeth inlaid on the drill bit body. Compared with the chip drill bit, the ball tooth drill bit has free tooth arrangement, and the number and position of the edge and middle teeth can be reasonably determined according to the diameter of the chisel hole and the size of the rock breaking load, and the diameter of the drill bit is not limited. And because it is multi-point crushing, the rock-breaking efficiency is higher, which can effectively eliminate the blind area of rock-breaking and avoid the repeated crushing of cuttings. Its non-grinding life is longer and the regrinding workload is small. It shows high value under the operating conditions of rock trolley and deep hole mining.

The ball-tooth drill bit is composed of cemented carbide column teeth inlaid on the drill bit body. Compared with the chip drill bit, the ball tooth drill bit has free tooth arrangement, and the number and position of the edge and middle teeth can be reasonably determined according to the diameter of the chisel hole and the size of the rock breaking load, and the diameter of the drill bit is not limited. And because it is multi-point crushing, the rock-breaking efficiency is higher, which can effectively eliminate the blind area of rock-breaking and avoid the repeated crushing of cuttings. Its non-grinding life is longer and the regrinding workload is small. It shows high value under the operating conditions of rock trolley and deep hole mining.

The rock drilling tool is a tool for human beings to conquer rock and ore. Its structure is composed of a slender hollow drill pipe and a drill bit inlaid with rock drilling carbide. In the process of rock drilling, under the conditions of severe wear and tear of rock ores and erosion and corrosion of high-pressure water flow (or compressed air) and pit water, the drill rod and drill bit are subjected to various forces such as tension, compression, bending, and torsion, and the rock drill is 2000 per minute. The high frequency impact of ~3000 times, and the impact energy per impact is as high as 25J~500J, so the drill rod and drill bit often fail by stress corrosion fatigue fracture, and their service life is generally only ten minutes to dozens of hours. Therefore, rock drilling tools are a large number of consumable tools that are indispensable in basic industries with harsh stress conditions, short service life and high technical content among all human steel tools.

The rock drilling tool is a tool for human beings to conquer rock and ore. Its structure is composed of a slender hollow drill pipe and a drill bit inlaid with rock drilling carbide. In the process of rock drilling, under the conditions of severe wear and tear of rock ores and erosion and corrosion of high-pressure water flow (or compressed air) and pit water, the drill rod and drill bit are subjected to various forces such as tension, compression, bending, and torsion, and the rock drill is 2000 per minute. The high frequency impact of ~3000 times, and the impact energy per impact is as high as 25J~500J, so the drill rod and drill bit often fail by stress corrosion fatigue fracture, and their service life is generally only ten minutes to dozens of hours. Therefore, rock drilling tools are a large number of consumable tools that are indispensable in basic industries with harsh stress conditions, short service life and high technical content among all human steel tools.

The ball-tooth drill bit is composed of cemented carbide column teeth inlaid on the drill bit body. Compared with the chip drill bit, the ball tooth drill bit has free tooth arrangement, and the number and position of the edge and middle teeth can be reasonably determined according to the diameter of the chisel hole and the size of the rock breaking load, and the diameter of the drill bit is not limited. And because it is multi-point crushing, the rock-breaking efficiency is higher, which can effectively eliminate the blind area of rock-breaking and avoid the repeated crushing of cuttings. Its non-grinding life is longer and the regrinding workload is small. It shows high value under the operating conditions of rock trolley and deep hole mining.

The rock drilling tool is a tool for human beings to conquer rock and ore. Its structure is composed of a slender hollow drill pipe and a drill bit inlaid with rock drilling carbide. In the process of rock drilling, under the conditions of severe wear and tear of rock ores and erosion and corrosion of high-pressure water flow (or compressed air) and pit water, the drill rod and drill bit are subjected to various forces such as tension, compression, bending, and torsion, and the rock drill is 2000 per minute. The high frequency impact of ~3000 times, and the impact energy per impact is as high as 25J~500J, so the drill rod and drill bit often fail by stress corrosion fatigue fracture, and their service life is generally only ten minutes to dozens of hours. Therefore, rock drilling tools are a large number of consumable tools that are indispensable in basic industries with harsh stress conditions, short service life and high technical content among all human steel tools.

The ball-tooth drill bit is composed of cemented carbide column teeth inlaid on the drill bit body. Compared with the chip drill bit, the ball tooth drill bit has free tooth arrangement, and the number and position of the edge and middle teeth can be reasonably determined according to the diameter of the chisel hole and the size of the rock breaking load, and the diameter of the drill bit is not limited. And because it is multi-point crushing, the rock-breaking efficiency is higher, which can effectively eliminate the blind area of rock-breaking and avoid the repeated crushing of cuttings. Its non-grinding life is longer and the regrinding workload is small. It shows high value under the operating conditions of rock trolley and deep hole mining.

The rock drilling tool is a tool for human beings to conquer rock and ore. Its structure is composed of a slender hollow drill pipe and a drill bit inlaid with rock drilling carbide. In the process of rock drilling, under the conditions of severe wear and tear of rock ores and erosion and corrosion of high-pressure water flow (or compressed air) and pit water, the drill rod and drill bit are subjected to various forces such as tension, compression, bending, and torsion, and the rock drill is 2000 per minute. The high frequency impact of ~3000 times, and the impact energy per impact is as high as 25J~500J, so the drill rod and drill bit often fail by stress corrosion fatigue fracture, and their service life is generally only ten minutes to dozens of hours. Therefore, rock drilling tools are a large number of consumable tools that are indispensable in basic industries with harsh stress conditions, short service life and high technical content among all human steel tools.

D Miningwell was founded in Quzhou city, China in 2001. For more than 21 years production and operation process. D Miningwell has been on the leading edge of mining equipment. We has its own drilling rig, DTH hammer, and drill pipe production workshops. provides a wide range of quality tools to mining, tunnelling, quarrying, water-well projects and urban transportation construction. D Miningwell is committed to providing customers with the most efficient and cost-effective drilling solution. Our team of drilling specialists are standing by to assist.

D Miningwell was founded in Quzhou city, China in 2001. For more than 23 years production and operation process. D Miningwell has been on the leading edge of mining equipment. We has its own drilling rig, DTH hammer, and drill pipe production workshops. provides a wide range of quality tools to mining, tunnelling, quarrying, water-well projects and urban transportation construction. D Miningwell is committed to providing customers with the most efficient and cost-effective drilling solution. Our team of drilling specialists are standing by to assist.

D Miningwell was founded in Quzhou city, China in 2001. For more than 26 years production and operation process. D Miningwell has been on the leading edge of mining equipment. We has its own drilling rig, DTH hammer, and drill pipe production workshops. provides a wide range of quality tools to mining, tunnelling, quarrying, water-well projects and urban transportation construction. D Miningwell is committed to providing customers with the most efficient and cost-effective drilling solution. Our team of drilling specialists are standing by to assist.

D Miningwell was founded in Quzhou city, China in 2001. For more than 20 years production and operation process. D Miningwell has been on the leading edge of mining equipment. We has its own drilling rig, DTH hammer, and drill pipe production workshops. provides a wide range of quality tools to mining, tunnelling, quarrying, water-well projects and urban transportation construction. D Miningwell is committed to providing customers with the most efficient and cost-effective drilling solution. Our team of drilling specialists are standing by to assist.
Tapered Button Bit is mainly used with a pneumatic rock drill and a taper rod. It is connected with the drill rod through the taper to carry out drilling operations. It is mainly used in the secondary crushing of mines, the support of bolts, the excavation of roadways and other fields.

Taper bits, especially Tapered button bits are the most popular tapered drill bits with a wide selection of head diameters from 28mm to 41mm. With carbide buttons hot pressed on the bit skirts, tapered button bits have a good drilling performance and are excellent in longevity.
D Miningwell was founded in Quzhou city, China in 2001. For more than 20 years production and operation process. D Miningwell has been on the leading edge of mining equipment. We has its own drilling rig, DTH hammer, and drill pipe production workshops. provides a wide range of quality tools to mining, tunnelling, quarrying, water-well projects and urban transportation construction. D Miningwell is committed to providing customers with the most efficient and cost-effective drilling solution. Our team of drilling specialists are standing by to assist.

Tapered Button Bit is mainly used with a pneumatic rock drill and a taper rod. It is connected with the drill rod through the taper to carry out drilling operations. It is mainly used in the secondary crushing of mines, the support of bolts, the excavation of roadways and other fields.
We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Tapered Button Bit is mainly used with a pneumatic rock drill and a taper rod. It is connected with the drill rod through the taper to carry out drilling operations. It is mainly used in the secondary crushing of mines, the support of bolts, the excavation of roadways and other fields.
We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

The Tapered Button Bit produced by D miningwell is designed according to ISO standard, adopts symmetrical structure design, has good powder discharge effect, and has strong crushing ability and fast rock drilling speed.
We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

The Tapered Button Bit produced by D miningwell is designed according to ISO standard, adopts symmetrical structure design, has good powder discharge effect, and has strong crushing ability and fast rock drilling speed.
We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

The ball-tooth drill bit has the characteristics of long service life, accurate positioning, coarse cuttings, low dust, and durability without grinding.
Compared with the traditional chip drill bit, the drilling speed is fast, and the passivation service cycle of the ball tooth drill bit is long. Relieve workers’ manual labor and speed up construction.
Therefore, taper connection and threaded connection ball-tooth bits of different diameters are widely used in various hard and brittle rocks to cooperate with drilling rigs for rock drilling.
We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Tapered Button Bit is mainly used with a pneumatic rock drill and a taper rod. It is connected with the drill rod through the taper to carry out drilling operations. It is mainly used in the secondary crushing of mines, the support of bolts, the excavation of roadways and other fields.
We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.

Tapered Button Bit: Tapered Button Bit is mainly used with a pneumatic rock drill and a taper rod. It is connected with the drill rod through the taper to carry out drilling operations. It is mainly used in the secondary crushing of mines, the support of bolts, the excavation of roadways and other fields.
We manufacture various tapered button bits in different degrees as below:
Bit diameter: 26mm to 60mm;
Tapered degree: 4°， 6°, 7°, 11°, 12°;
Shank sizes: Hex. 19mm, Hex, 22mm and Hex. 25mm;
Carbide type: Chisel type, Cross type, Button type.