Category: Stone Tools - Drilling Core Bits Cheap Price 
Location: China 1784 Views 
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High air pressure down the hole （D-T-H）drill bits
High pressure DTH drill bits mainly have 3 inch, 4 inch, 5 inch, 6 inch and 8 inch. Bit diameter is from 85mm to 305mm.
The carbide alloy diamter: 12mm, 13mm, 14mm
We can design and manufacture according to customers' requirement of the Bit diameter, No. of air holes, Carbide button shape and the face shape.
