Thread Button Drill Bits R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, ST68,GT60
Alloy Steel Bar 45CrNiMoV and Tungsten Carbide Zhuzhou YK05 or Boart Longyear T6.
- Brand: Jinquan
- Model: R22, R25, R28, R32, R35, R38, T38, T45, T51, ST58, GT60
- Brief: Alloy Steel Bar 45CrNiMoV and Tungsten Carbide Zhuzhou YK05 or Boart Longyear T6.