[Heavy Duty for Stainless Steel] The M35 Cobalt Drill Bits is Industrial Grade and can drill 8X longer life and 3X faster. This Cobalt Step bits can help you cut more holes, Heavy Duty for Stainless Steel, Hard steel,Galvanized Steel, Aluminum,Iron, Wood and Copper. If you're expanding a lot of holes in metal sheet then please choose this step drill bit
[M35 Cobalt HSS] This Cobalt Drill bit made of M35 Cobalt Steel can successfully drill more than 35 holes easily into 1/5" thick Stainless Steel plate like knife through butter!
[6 Steps︱2-Spiral-Flute] 6 steps: from 3/16", 7/8", 1-1/8", 1-7/32", 1-1/4" to 1-3/8". 2-Spiral-Flute:Clears Chips faster
[Cutting Fluid] Cutting Fluid must be poured during work for longer life! Prohibit water-cooling to prevent rust!
[3/8" Tri-Flatted Shank] Fits into power tools chuck securely and eliminates slip