Pro Grade Step Drill Bit Set For Steel And Metal With M35 Cobalt 13 Step Holes One And Five Eighths Inch Two Straight Flutes Extra Heavy Duty For Stainless Steel Aluminum Wood PVC Copper Goes Through Steel Like Butter Long Lasting Sharp Cutting By OXMUL

M35 cobalt step drill bit set for metal and steel
✔️ 13 sizes: 3/16" to 1-5/8", 3/8" tri-flat shank, 2-flute

This pro-grade step drill bit set is built to chew through steel, stainless, aluminum, copper, wood and plastic with ease. It's a go-to choice in fabrication shops, maintenance crews, automotive work, and DIY metal projects where progressive hole sizes save time and effort.

✅ 13 sizes from 3/16" (4.76 mm) to 1-5/8" (41.28 mm) with 3/8" (9.53 mm) shank and 2 straight flutes
✅ M35 cobalt steel construction for long life and superior hardness in stainless steel and hard metals (7% cobalt)
✅ Two-flute design promotes fast chip clearance and smoother cuts through hard stock
✅ Compatible with stainless steel, hard metal, aluminum, wood, copper, and PVC
✅ Heavy-duty industrial-grade build suitable for mower blades, brackets, axles, and other metalworking tasks

💡 What is a cobalt steel step drill bit set used for in metalworking and sheet metal fabrication?

A handy, handy tool for creating a range of hole sizes with one bit, saving time and tool changes in metalworking.

• Long-lasting cobalt steel improves wear resistance on stainless steel and other tough metals
• Progressive holes from small to large in a single drill operation
• 2-flute design keeps chips moving to prevent clogging and heat buildup
• 3/8" shank fits standard drill chucks for secure, dependable cuts