Small hole drilling bits& rock drill bit tapered chisel ...
2021-7-8u2002·u2002Tapered drill bits are used in granite and marble quarry, gold mine, railway, tunnel, etc. for drilling. Feature: Tapered drill bits connect tapered drill steel of rock drill for drilling holes. Material: High quality carbide and high quality steel. MOQ: No requirement for testing and trial order. We can design and manufacture according to your ...
Get Price