Ten Piece Cobalt Drill Bit Set For Stainless Steel And Hard Metals, Two Each Of 1mm, 1.5mm, 2mm, 2.5mm, And 3mm, Jobber Length Twist Drills, M35 High Speed Steel Built For Precision Small Hole Drilling And Tough As Nails Heavy Duty Jobs
✔️ Ten cobalt drill bits, 2x each: 1, 1.5, 2, 2.5, 3 mm
This heavy-duty cobalt drill bit set is designed for precision micro-hole drilling in stainless steel and other hard metals. It's widely used in metalworking, jewelry, PCB work, IT hardware repair, and workshop maintenance where tough materials demand clean, accurate holes.
✅ 2x 1mm (3/64") diameter, 35mm (1.38") length
✅ 2x 1.5mm (1/16") diameter, 40mm (1.57") length
✅ 2x 2mm (5/64") diameter, 49mm (1.93") length
✅ 2x 2.5mm (3/32") diameter, 56mm (2.20") length
✅ 2x 3mm (1/8") diameter, 62mm (2.44") length
✅ M35 high-speed steel with 5% cobalt alloy for heat resistance
✅ 135-degree split-point tip for precise starts and reduced walking
✅ Straight shank fits most drills and rotary tools
✅ Packaged in a plastic bag for easy storage
💡 What is a cobalt drill bit set best used for in metalworking?
This handy cobalt drill bit set is ideal for tough metals and precision drilling. - handy for metalworking, PCB drilling, jewelry work - longer bit life when drilling hard metals with cobalt alloy - compatible with standard drills due to straight shank