Crosstar M35 Cobalt Drill Bit Set - 21pcs 1/16"-1/2" Titanium Coated Self-Centering Metal Drill Bits for Hardened Steel, Stainless Steel, Cast Iron | Bullet Point Tip, High-Speed Jobber Bits

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About This 【M35 Cobalt Alloy Supreme Hardness】 Engineered with premium M35 cobalt steel (5% higher cobalt content than standard M2), these drill bits penetrate hardened metal (HRC 50+), stainless steel, and cast iron effortlessly. 【TiAlN Coating for 3X Lifespan】Titanium Aluminum Nitride coating withstands 1,100°F heat, reducing friction by 40% and extending durability compared to standard titanium coatings. 【Precision Pilot Point Tip】Self-centering tip eliminates "walking" on curved surfaces. Achieves 0.1mm drilling accuracy - ideal for automotive, HVAC, and metal fabrication. 【21-Piece Pro-Grade Kit】 Includes 16 most-used sizes (1/16"-1/2") with duplicates for high-demand bits.Industrial-grade 135° split point prevents chipping. 【Zero-Tear Design & Storage】 Spiral flute design clears metal chips 50% faster.Comes in shockproof case with laser-etched size labels for workshop efficiency. Overview Material : High Speed Steel (HSS) Finish Type : Titanium Aluminum Nitride Brand : Crosstar Tool Flute Type : Spiral Unit Count : 21.0 Count Show more