Button Drill Bits - Top-Hammer Rock Drilling Tools,
King-Long Cross Type Bits made by high quality alloy steel bar and tungsten carbides. Customized thread button drill bits according to different drilling application, and custom drill bits are more suitable to drill soft rock, loose-medium rock and hard rock. Cross Type Bits is old and not popular in developed countries however the Cross Type Bits are still popular in Developing and under developing countries. Specifications of King-Long Brand Rock Drilling Tools: Button Drill Bits…
Get Price