T38 T45 T51 ST58 ST68 64-152mm Dome Reaming Threaded Button Bits for Drilling Tunneling

Reaming drill bits are designed for layer drilling, to enlarge pilot holes for long hole blasting of drop raises and constructing service holes in underground mines,featuring fast penetration rates in softer rock like shale and limestone with low silica content.

Reaming rock bit applicable to reaming for first-grade and second-grade larger-diameter hole. It can reduce the sectional area between bit blade and rock hole, also solve the problem of large diameter's low drilling speed in the hard formation with good directive.

With Pilot adaptors, the drilling direction can be ensured and accurate.

Sino Rock Drilling Tools Inquiry or order Guide:

Before inquiry or formal order,it will be helpful to provide detail info as belows:

Advantage of Sino Rock Drilling Tools thread rock button bit:
1. Threaded drill bits are equiped with the hydraulic drilling jumbo and used for crush rock, which are widely used in the tunnel construction, large scale mine (open and underground) and large section tunnel advance in metal mine.
2. We can make all kinds of threaded drill bits, that include R25, R28, R32, R35, R38, T38, T45, T51,ST58, GT60, ST68 and so on, and the head diameter range from 41mm to 127mm.
3. Our R&D team will develop the sharpest industry "teeth", the most suitable bits for different application. The bits with sharp buttons are suit for harrd and mid-hard rock, and have excellent wear resistence and driving speed. The bits with round buttons are extensively used in hard rock with high abrasion and impact resistance.
4. Our button bit is made of top quality steel and tungsten carbide same with well-known brand in the world. For the technic, we take “hot-insertion” processing procedure to insert the buttons into the bit. Optimized designs improve the drilling efficiency. And automatic production line ensure the quality stability of product. Strict requirements of heat-treatment guarantee durability of the bits.

1. Packing details : plastic bag wrapped put in cartons or wooden cases.
2. Handling time for an order
Based on order quantity, normally it takes 15-30 days for production.
Only 2 or 3 days if we have stock on your request size.
3. Shipping way
Sample order: We suggest Express like DHL/UPS/TNT/FEDEX/EMS or by air.
Bulk order: We suggest by sea shipment .
We specialize in Rock drilling tools, including rock drill bits,tapered drill tools,threaded drill tools,Down the hole drilling tools ( DTH ), which are widely used in mining , quarrying , well drilling and construction . All these products are compatible with other world world leading brands such as Atlas Copco , , Mitsubishi and Boart Longyear.

Test is the best way to find suitable drilling tools, for samples please Email drillbit@qq.com