Go-To 5/32 Inch Cobalt Drill Bits Set 20 Pieces HSS M35 For Steel Stainless Steel Cast Iron Wood And Hard Plastic Durable Heavy-Duty Performance Drill Bits For DIY And Pro Metalworking
✔️ 5% cobalt HSS drill bits for hard metals like steel and cast iron
This 20-piece cobalt drill bit set is designed for demanding metalworking tasks. Made from M35 cobalt steel, these bits cut through hardened steel, stainless steel, cast iron, and tough plastics with ease. Each bit is precision-ground and hardened to maintain diameter accuracy within ±0.03 mm (±0.0015 in). The set comes in a compact plastic case for quick access and organized storage.
✅ 5/32 inch diameter (3.969 mm) cobalt alloy HSS M35 for durability
✅ 135-degree self-centering split-point to start accurately
✅ Effective on hardened metal, stainless steel, cast iron, plastic, PVC board and wood
✅ Diameter accuracy controlled within ±0.03 mm due to full grinding and hardening
✅ Includes a sturdy plastic case for easy storage
💡 What is a cobalt drill bit set best used for in metalworking?
These cobalt bits are handy for drilling through tough metals and delivering long life in steady use.
- Handy for drilling hardened steel, stainless steel, and cast iron - High heat resistance reduces wear and dulling during tough jobs - 135-degree split-point helps start accurately and prevents wandering - Ideal for DIY projects and professional metalworking tasks