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Product Review
- MATERIAL: The drill bit is made from powder, high-quality, and to use.
- DRILL SPPED: The speed of drilling machine need to be reached 2000 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 .
- PACKAGE: Set of 20pcs 1mm drill bit.
- WIDE USE: Idea for drill holes on the jewelry, ceramic, jade, agate, glass, amber and semiconductor materials etc.
