COMOWARE Step Drill Bit Set, 1/8"~1-3/8" 5PCS Four Spiral Flute Step Drill Bits for Metal, AlTIN Coated Step Bit with 1/4" Hex Shank for Metal, Stainless Steel, Aluminum, Wood, Plastic

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About This Spiral Flute Step Drill Bit for Metal: Our step drill bit features an innovative spiral flute design, precision-machined to prevent walking and increase stability. It ac hieves up to 3x the drilling speed of conventional bits with minimal vibration, ensuring smooth, precise holes in metal. This step drill bit for metal delivers professional results M2 Cobalt Step Drill Bit: Made from premium M2 cobalt high-speed steel and heat-treated, this cobalt step drill bit offers superior toughness and bending strength compared to standard HSS. It?셲 engineered to effortlessly drill through stainless steel and other hard metals, making it the most durable choice in any step drill bit set AlTiN Coated Step Bit with 67HRC: The Aluminum Titanium Nitride (AlTiN) coating provides an exceptional 67HRC hardness rating. This step bit coating dramatically increases resistance to heat, wear, and corrosion, ensuring a longer lifespan and consistent performance even under heavy use Versatile Size Step Drill Bit Set: This complete step drill bit set includes 5 different step sizes (1/8"" to 1-3/8"", 3.2-35mm). The unique design allows you to drill clean holes in various thicknesses with a single bit, saving time and effort. It?셲 the versatile solution for any project Usage Notes: Use on mild steel up to 1/8" (3mm) or stainless steel up to 1mm thick. Always apply cutting oil or coolant during continuous operation. Note: The optimized cutting geometry may require a slower start speed, ensuring ultimate control and a clean cut Overview Material : M2 Cobalt Steel Cutting Diameter : 1/8"~1-3/8" Inches Finish Type : Titanium Aluminum Nitride Shank Type : Hex Brand : COMOWARE Show more