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and mild steel
⭐⭐⭐⭐⭐ "Quality part from Victor as expected
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Why Choose Drill America - 2-3/4 x
Fit: Ease tapered seat styling with a relaxed fit
7/16" Cobalt Quick Change Hex Shank Drill Bit - High Performance & Durable Cutting Tool | Drill America Pipe Clamps and mild steelCOHEX Quick Change Cobalt Drill Bits are designed for use in hand held and impact drills. Cobalt Drill Bits are effective in drilling tough, high tensile strength materials and display high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed. These drill bits have a 135 split point tip for fast penetration and accurate drilling and a 1 4" Hex Shank that can be used in quick change impact drivers. They are gold oxide