

3/16 to 7/8" Hex Shank 12 Step Drill Bit Mach-Blue®
SKU: 19022
- Up to 50x more holes than titanium or black oxide drill bits
- Up to 2x faster than titanium or black oxide drill bits
- Proprietary Mach-Blue® Armor Plating is a super hard surface that retains sharper cutting edges, and reduces heat build-up and cutting friction – resulting in faster cuts and exceptionally long drill life
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