Small hole drilling bits& rock drill bit tapered chisel ...
2021-7-8 · Tapered 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 requirement of diameter, number air holes and carbide button shape. Types of drill bits…
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