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Main image of M35 Cobalt Step Drill Bit Set with Center Punch, 3PCS TiAlN Coated Unibit1/8"-7/8", 4 Spiral Flute H Shank for Stainless Steel, Metal, Wood, Plastic

Alt view image 2 of 7 - M35 Cobalt Step Drill Bit Set with Center Punch, 3PCS TiAlN Coated Unibit1/8"-7/8", 4 Spiral Flute H Shank for Stainless Steel, Metal, Wood, Plastic

Alt view image 3 of 7 - M35 Cobalt Step Drill Bit Set with Center Punch, 3PCS TiAlN Coated Unibit1/8"-7/8", 4 Spiral Flute H Shank for Stainless Steel, Metal, Wood, Plastic

Alt view image 4 of 7 - M35 Cobalt Step Drill Bit Set with Center Punch, 3PCS TiAlN Coated Unibit1/8"-7/8", 4 Spiral Flute H Shank for Stainless Steel, Metal, Wood, Plastic

Alt view image 5 of 7 - M35 Cobalt Step Drill Bit Set with Center Punch, 3PCS TiAlN Coated Unibit1/8"-7/8", 4 Spiral Flute H Shank for Stainless Steel, Metal, Wood, Plastic

Alt view image 6 of 7 - M35 Cobalt Step Drill Bit Set with Center Punch, 3PCS TiAlN Coated Unibit1/8"-7/8", 4 Spiral Flute H Shank for Stainless Steel, Metal, Wood, Plastic

Alt view image 7 of 7 - M35 Cobalt Step Drill Bit Set with Center Punch, 3PCS TiAlN Coated Unibit1/8"-7/8", 4 Spiral Flute H Shank for Stainless Steel, Metal, Wood, Plastic

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M35 Cobalt Step Drill Bit Set with Center Punch, 3PCS TiAlN Coated Unibit1/8"-7/8", 4 Spiral Flute H Shank for Stainless Steel, Metal, Wood, Plastic

Colete Industrial Sizing SystemCorehensive set includes 13-step (1/8"-1/2") great for electronics enclosures, 12-step3/16" to 7/8"suitae for combination of range and density, 9-step (1/4"-3/4") for machinery assemy and oversize 4-step (up to 1-3/8") for industrial equipment.
Industrial-Grade DurabilityEngineered with premium M35 high-speed steel, our unibit step drill bits withstand rigorous factory production line use. Proven to maintain peak performance through 8+ rs of continuous drilling on hardened steel, stainless steel, and industrial metal sheets - reducing downtime for tool replacement.
89HRC3 Coating for Heavy-Duty ProtectionThe industrial aluminum nitride coating (89HRC3 hardness) delivers superior heat rstance for tended drilling sessions. Ideal for high-volume stainless steel part manufacturing, maintaining sharpness through 500+ holes to minimize consumae replacement costs.

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Precision Engineering for Mass Production118° split-point dgn with self-centering action enaes rapid hole positioning - perfect for automotive coonents and machinery parts manufacturing. H shank coatibility with all industrial power tools increases production output to 300+ precision holes per shift.
Multi-Process Manufacturing SolutionFour-flute spiral dgn efficiently clears metal chips during continuous operation. Works seamlessly with HVAC systems, electrical panels, and plumbing installations. Includes magnetic step drill bits for iroved metalworking efficiency.

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