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Four Spiral Flute Step Drill Bit, M35 Cobalt Unibit Step Drill Bit Set 1/8"-7/8", AlTiN Coated Step Bits, Four Spiral Flute, 1/4" H Shank for Metal, Stainless Steel, Aluminum, Plastic, 3PCS
- 4-Flute Turbo-Cutting System: step drill bit set has quad spiral grooves enaing 40% faster chip evacuation than 2-flute coetitors, eliminating jams when drilling.
- Military-Grade M35 Cobalt Core: Our step drill bit for metal is of 5% cobalt alloy withstands 1,450°F heat - 3X lifespan vs normal HSS bits. Perfect for hardened steel, copper alloys, and carbon fiber coosites.
- Nano-AlTiN Armor Coating: The unibit step drill bit is of 89HRC-rated surface with 0.45 friction coefficient outlasts TiN coatings.
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Universal 1/4"
H Shank: Each step bit has instant coatibility with multiple tools. Anti-slip grooves prevent chuck slippage even under 35N·m torque.
34 Step Sizes: There are 3PCS step drill bits, and the step drill sizes range from 1/8" to 7/8" in 0.04" increments. The step drill bit set includes a shockproof case, easy to store and carry.
H Shank: Each step bit has instant coatibility with multiple tools. Anti-slip grooves prevent chuck slippage even under 35N·m torque.
34 Step Sizes: There are 3PCS step drill bits, and the step drill sizes range from 1/8" to 7/8" in 0.04" increments. The step drill bit set includes a shockproof case, easy to store and carry.
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- Return for refund within: 30 days
- Return for replacement within: 30 days
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