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Jobber 135° HSS Black Finish$5.25
These heavy duty, high speed steel drill bits are made of M2 HSS and sport a black oxide finish. Sold in packages of 6. They have a ground flute and a straight shank.
Used with a 1/2 inch power drill, they are suitable for work on Cast Iron, Steel, Steel Forging, and Light Gauge Stainless Steel.