5pcs M35 Cobalt Twist Drill Bits 7mm for Hardened Steel Stainless Steel Cast Iron Wood

Feature: 1. Precise Drilling Set: This 5 piece M35 cobalt drill bit set in 7.0mm size ensures precise hole positioning and minimal runout when used with hand drills, cordless drills, or drill presses. The straight shank provides a firm grip without slipping. 2. Durable Construction: Forged from industrial high speed steel with a black oxide finish and full hardening treatment. This drilling twist bit can cut through thick cast iron, stainless steel, aluminum alloy, and solid wood without chipping or dulling quickly. 3. Efficient Chip Removal: The flute design of the cobalt twist drill bit allows metal shavings to exit smoothly during deep drilling. This prevents clogging and overheating, reducing the need to frequently withdraw and clean the tool. Ideal for continuous thick material work. 4. Versatile: This 7mm drill bit works effectively on stainless steel, cast iron, aluminum alloy, solid wood, MDF, and composite boards. Suitable for home renovation, metal fabrication, and equipment repair tasks with a single tool. 5. One Piece Solid Build: The cobalt twist drill bit is integrally formed without welded joints. This seamless structure prevents breakage under high speed rotation and heavy pressure drilling, enhancing safety during demanding applications. Specification: Item Type: M35 Cobalt Twist Drill BitMaterial: M35 Cobalt High Speed SteelFeatures: Anti Slip, Wear Resistance, High Hardness, Not Easy to Rust Application: Thick Cast Iron, Stainless Steel, Aluminum Alloy, Non standard Metal, Wood Board, etc Diameter: Approx. 7mm 0.28in Working Length: Approx. 68mm 2.68in Total Length: Approx. 110.5mm 4.35in Shank Width: Approx. 7mm 0.28in . Package List: 5 x M35 Cobalt Twist Drill Bits 1 x White Box Note: