HSS vs Cobalt vs Carbide Drill Bits: What To Choose — Benchmark

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INCLUDES: (6 piece) 1/4-Inch Cobalt Jobber Drill Bit Set, 1/4 Diameter, 4 overall length, 2 3/4 Flute PREMIUM QUALITY: These M35 cobalt drill bits

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COMOWARE Cobalt Drill Bit Set- 29Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Metal Indexed Storage Case, 1/16-1/2

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