38mm 4 Buttons Retrack Bit 7 Degree Tapered Pentagon Socket Bit Set
1. Product Name:tungsten carbide drill bits
TypesTapered chisel bits, Tapered cross bits, Tapered button bits
2. Application:Tapered drill bits are used in granite and marble quarry, gold mine, railway, tunnel, etc. for drilling
3. Feature:Tapered drill bits connect tapered drill steel of rock drill for drilling holes
4. Material:High quality carbide and high quality steel
5. MOQ:No requirement for testing and trial order



