1PC HSS Countersink Step Drill Bit Coated/Black Screw Countersunk Drill Bits 90/180 for Copper Aluminum M3-M12(Black Oxide,M3(90 Degree))
SizeM3(90 Degree)
Description
Combination Drill & Taps
Production Name: Step drill bit, countersink drill bit, screw countersunk drill bit
Work Piece: used for tool steel, cast iron, copper, aluminum, alloy steel, iron, die steel etc.
2 types(90 degree/180 degree)
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