One Quarter Inch Cobalt Drill Bit Set, Ten-Piece M35 HSS High Speed Steel for Hard Metals, Stainless Steel, and Cast Iron, Fits Most Power Drills, Built Tough for Real World Jobs

Quarter-Inch Cobalt Drill Bit Set for Hard Metals
✔️ 10 pcs, 1/4 in cobalt HSS bits, 5% cobalt for wear resistance

These 1/4 inch cobalt drill bits are built for hard metals and high-speed drilling. They excel in stainless steel, cast iron, and other tough materials, making them a reliable choice for metalworking, fabrication, and maintenance tasks.

✅ 10 pcs, 1/4 in (6.35 mm) diameter cobalt drill bits, flute length 2-3/4 in (69.85 mm)
✅ M35 cobalt high speed steel with 5% cobalt for enhanced wear resistance
✅ Fully ground 135° split point with straight shank for accurate starts
✅ Spiral grooves clear chips fast, reducing heat and friction for cooler drilling
✅ Suitable for stainless steel, steel, sheet metal, cast iron, plastics, and aluminum

💡 What is a high performance cobalt drill bit set used for in metalworking?

Handy for tough metalworking tasks where heat and wear are concerns.

- enhances heat resistance in stainless steel and cast iron
- provides longer life with M35 HSS and 5% cobalt
- ensures clean starts with 135 degree split point and straight shank
- good for drilling through plastics and aluminum as well