High Quality Cobalt Countersink Drill Bit Suitable for Chamfering Hard Metals

[Ease of use]: The automatic through-hole chamfering cutter can quickly trim and chamfer both sides of the hole in a few seconds. -[Wide application]: Suitable for workpieces with hardness less than 65HRC, such as stainless steel, aluminum plate, carbon steel, thin iron plate, insulating plate, PVC plate, wood board.

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