D Miningwell down-the-hole drills are mainly used in geological exploration, coal mines, water conservancy and hydropower, roads, railways, bridges, construction, etc.
D Miningwell down-the-hole hammer drill bits are made of carbide inserts and steel. Widely used in water well drilling and protection of hard rock formations. In the past 30 years, we have exported this drill bit to many countries with good feedback. You are welcome to contact us if you need. We can supply all series of drilling equipment and drilling tools.
D Miningwell’s down-the-hole drill bits are made of alloy steel and advanced heat-treated high-quality alloy steel to ensure good drilling performance and long service life. Widely used by customers all over the world.
