sourcing map Drill Bits Set 11mm 12mm, Titanium Nitride Coated High Speed Steel 4341 Straight Round Shank Drilling Cutter for Stainless Steel Alloy Copper, 2pcs

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  • Wide Applications Widely used for drilling stainless steel, aluminum alloy, iron, copper, wood and plastic. Used on electric hand drill, drilling machine and bench drill. Drill metal with high hardness or foreign substance, the rotational speed should be slower than normal drilling.
  • Tips Suitable lubricant is conducive to cutting or cooling, making cutting easier and improving smoothness and dimensional accuracy. When using hand-held electric drill, the recommended speed is 100-1000rpm min; the larger the drilling diameter, the slower the drilling speed.

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