Retrac Top hammer drill bits

Product Introduction

MININGWELL thread button drill bits are made by high quality alloy steel bar and tungsten carbides. Through heat treatment, our drilling tools are tough enough to meet rock drilling demands and have the least loss of energy while drilling the rocks. Besides, we can design customized thread button drill bits according to different drilling application, and custom drill bits are applicable to drill soft rock, loose-medium rock and hard rock.

Rock Drill Thread Button Bits is suitable for R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, T60 rock drill rods use. It have many thread. It's widely used for hard rock(f=8~18) drilling use.

1) Thread connection: R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, GT60
2)Good quality material
3)Technology:hot-pressing or welding

Before Official Order, please confirm below informations:
(1) Thread Type
(2) Standard or Retrac
(3) Bit button shape (tip shape)--Spherical or Ballistic
(4) Bit face shape--Drop Center, Flat Face, Convex, Concave, etc...

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Technical data

Technical Parameters
Model	Head Shape	Head Diameter	Length	Port Holes	Side Holes	Gauge Buttons
R32	Flat Face	51	130	3	/	6*Φ10
R32	Flat Face	57	130	3	/	6*Φ10
R38	Flat Face	64	140	3	/	6*Φ11
R38	Center Drop Face	76	160	4	/	8*Φ11
R38	Center Drop Face	89	170	4	/	8*Φ12
T38	Center Drop Face	64	160	2	/	8*Φ9
T38	Flat Face	70	160	3	/	6*Φ11
T38	Center Drop Face	76	160	4	/	8*Φ11
T38	Center Drop Face	89	170	4	/	8*Φ12
T45	Center Drop Face	72	160	4	/	8*Φ11
T45	Center Drop Face	76	160	4	/	8*Φ12
T45	Center Drop Face	89	170	4	/	8*Φ12
T45	Center Drop Face	102	180	4	/	8*Φ13
T45	Triangle Face	89	170	4	/	8*Φ13
T45	Flat Triangle Face	102	175	3	/	9*Φ13
T45	Flat Triangle Face	115	175	3	/	9*Φ14
T51	Center Drop Face	89	170	4	/	8*Φ12
T51	Center Drop Face	102	180	4	/	8*Φ13
T51	Flat Face	115	185	2	2	8*Φ14
T51	Center Drop Face	127	185	4	/	8*Φ14
T51	Flat Triangle Face	102	185	3	/	9*Φ13
T51	Flat Triangle Face	115	185	3	/	9*Φ14
T51	Flat Triangle Face	127	185	3	/	9*Φ14
ST58	Flat Face	102	180	3	/	9*Φ13
ST58	Flat Face	115	185	2	2	8*Φ14
ST58	Center Drop Face	127	185	4	/	8*Φ14
GT60	Flat Triangle Face	102	212	3	/	9*Φ13
GT60	Flat Triangle Face	115	212	3	/	9*Φ14
GT60	Flat Triangle Face	127	212	3	/	9*Φ16
GT60	Flat Triangle Face	140	225	3	/	9*Φ16
ST68	Center Drop Face	102	185	4	/	8*Φ14
ST68	Center Drop Face	115	185	4	/	8*Φ14
ST68	Center Drop Face	127	190	4	/	8*Φ14
ST68	Center Drop Face	140	190	4	/	8*Φ16

Application

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