Deli Step Drill Bit HSS -M2 Copper- (4-32mm) - ريشة بلبل

Product Description This high-performance 4 mm–32 mm step drill bit is engineered for multi-diameter drilling in sheet metal, aluminum, plastic, and thin steel. With graduated steps and a split-point tip, it eliminates bit changes and ensures precise, burr-free holes with minimal effort. Made from hardened HSS and finished with a black oxide or optional titanium coating, this bit offers durability and smooth drilling in both professional and DIY environments. Key Features Hole Size Range: 4 mm–32 mm across progressive steps—versatile for various mounting & conduit sizes Material & Coating: High-Speed Steel (HSS): tough and wear-resistant Black Oxide Finish: reduces friction and resists corrosion Optional Titanium Nitride (TiN) Coating: boosts longevity and heat resistance Shank Type: 1/4″ hex or 8 mm round with 3-flat grip—fits drills or impact drivers securely Tip Design: Self-starting split-point tip prevents walking and eliminates the need for a pilot hole Flutes: Spiral flutes optimize chip clearance and drilling efficiency Markings: Laser-etched step sizes—easy to read and reference Int code: 11