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Main image of M35 Cobalt Step Drill Bit Set, Four Spiral Flute Unibit Step Drill Bits (1/8"-7/8") Wear-Rstant TiAlN Coated, 1/4" H Shank for Metal, Carbon Steel, Stainless Steel, Wood, Plastic (3Pcs)

Alt view image 2 of 7 - M35 Cobalt Step Drill Bit Set, Four Spiral Flute Unibit Step Drill Bits (1/8"-7/8") Wear-Rstant TiAlN Coated, 1/4" H Shank for Metal, Carbon Steel, Stainless Steel, Wood, Plastic (3Pcs)

Alt view image 3 of 7 - M35 Cobalt Step Drill Bit Set, Four Spiral Flute Unibit Step Drill Bits (1/8"-7/8") Wear-Rstant TiAlN Coated, 1/4" H Shank for Metal, Carbon Steel, Stainless Steel, Wood, Plastic (3Pcs)

Alt view image 4 of 7 - M35 Cobalt Step Drill Bit Set, Four Spiral Flute Unibit Step Drill Bits (1/8"-7/8") Wear-Rstant TiAlN Coated, 1/4" H Shank for Metal, Carbon Steel, Stainless Steel, Wood, Plastic (3Pcs)

Alt view image 5 of 7 - M35 Cobalt Step Drill Bit Set, Four Spiral Flute Unibit Step Drill Bits (1/8"-7/8") Wear-Rstant TiAlN Coated, 1/4" H Shank for Metal, Carbon Steel, Stainless Steel, Wood, Plastic (3Pcs)

Alt view image 6 of 7 - M35 Cobalt Step Drill Bit Set, Four Spiral Flute Unibit Step Drill Bits (1/8"-7/8") Wear-Rstant TiAlN Coated, 1/4" H Shank for Metal, Carbon Steel, Stainless Steel, Wood, Plastic (3Pcs)

Alt view image 7 of 7 - M35 Cobalt Step Drill Bit Set, Four Spiral Flute Unibit Step Drill Bits (1/8"-7/8") Wear-Rstant TiAlN Coated, 1/4" H Shank for Metal, Carbon Steel, Stainless Steel, Wood, Plastic (3Pcs)

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M35 Cobalt Step Drill Bit Set, Four Spiral Flute Unibit Step Drill Bits (1/8"-7/8") Wear-Rstant TiAlN Coated, 1/4" H Shank for Metal, Carbon Steel, Stainless Steel, Wood, Plastic (3Pcs)

FOUR FLUTE STEP DRILL BIT - Deflection during cutting is a common proem with ordinary step drills, but our four flute step drill bit is dgned to provide greater stability. With iroved accuracy and cutting speed, it's perfect for stainless steel drilling and offers several times the service life of ordinary step drills.
M35 COBALT HSS - For hard materials, M35 cobalt HSS is the way to go. With its high hardness (HRC 64-66), red hardness, and wear rstance, it's perfect for the toughest jobs. And thanks to proper heat treatment, it boasts higher toughness and bending strength than ordinary high-speed steel.
TiAlN COATING - Our TiAlN coating is a cutting-edge material with ceptional properties. It's tremely hard, can withstand high oxidation teeratures, and has cellent thermal hardness. Plus, it boasts strong adhon, a low friction coefficient, and low thermal conductivity, making it an ideal choice for demanding applications.

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LARGER CUTTING ANGLE - When it comes to drilling hard materials, the angle of the drill tip matters. That's why we've dgned our drill bits with a 135° cutting angle. This angle reduces self-wear and provides a larger stress area, resulting in cleaner, more efficient drilling.
TIPS - Use these tips to keep your drill in top condition: add cutting oil or spray water to cool during continuous use, the start-up speed will be slower due to the larger cutting angle, any quality proems, please feel free to contact us. We stand behind our products and back them with a 100-day warranty for your peace of mind.

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