20PCS 1mm Lapidary Drill Bits, Premium Diamond Drill Bit Bur Set, Solid Bits Needle for Jewelry Agate

$36.99

  • Made from diamond powder, high-quality, precise and durable to use
  • The speed of drilling machine need to be reached 20000 RPM when you use our drill bits to drill holes
  • The higher speed of drilling machine, the better effect of drilling bits
  • please use cold water during the drilling hole operation
  • Idea for drill holes on the jewelry, ceramic, jade, agate, glass, amber and semiconductor materials etc

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Additional information

Weight 0.004 kg
Brand

BuyWeek