Diamond coated high speed drill bits 10 pcs - 2.2mm

10 pcs, high speed drill bits, drilling diameter:2.2mm, overall length:54mm, shank:1mm
Must add water for coolant, recommended speed around 20,000RPM
Suitable for drilling various jades and gems, glass, crystal…
  • Model: 232014
  • Shipping Weight: 0.0047kgs

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USD$3.50

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