8% Cobalt Drill Bits, Metal Drill Bit Set 4Mm, HSS M42 Carbide Twist Drill Bit

Material High Speed Steel (HSS). Used with hand drills, drill presses, bench drills, machining centers, CNC lathes, etc. For hardened material or heavy duty work, such as cutting through stainless steel, steel plate, iron sheet, titanium alloy, cast Iron, hardwood and also can be used for softer materials.

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