Diamond coated high speed drill bits 10 pcs - 1.5~1.6mm


10 pcs, diamond coated double end, high speed drill bits, drilling diameter:1.5~1.6mm, overall length:42mm, shank: 0.8mm, NW:1.8g
Must add water for coolant, recommended speed around 20,000RPM
Suitable for drilling various jades and gems…

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  • Model: 232011
  • Shipping Weight: 0.0018kgs