Pro Grade 5 Percent Co Alloy Drill Bits Set 1.5mm To 6.5mm 13 Pieces High Speed Steel For Stainless Steel Tough Metals Cast Iron Copper Aluminum Plastic Wood DIY And Pro Projects
✔️ 5% cobalt alloy boosts hardness and high-temp durability for metals
These cobalt drill bits are designed to drill stainless steel, carbon steel, cast iron, engineering steel, hard metals, copper, aluminum, and wood. The 5% cobalt content increases hardness and high temperature resistance for professional projects and DIY tasks, and they come in a plastic storage box with size identification for easy transport and organization.
✅ 13-piece set covering 1.5mm to 6.5mm and 13 sizes
✅ 5% cobalt alloy for improved hardness and heat resistance
✅ Suitable for stainless steel, carbon steel, cast iron, engineering steel, hard metals, copper, aluminum, wood
✅ 135° spiral double-edge cutting with sharp corners for efficient cutting
✅ Plastic storage box with size identification for easy carry and organization
💡 What is a cobalt drill bit best used for in metalworking? A handy guide:
- High hardness and heat resistance for stainless steel and hard metals
- Efficient cutting and reduced slipping with 5% cobalt alloy
- Good for copper, aluminum, wood, and other common materials
- Comes in a 13-piece set with sizes 1.5mm to 6.5mm