M35 Cobalt Spiral Flute Step Drill Bit Set Five Piece Range 1/8 To 3/4 Inch With 1/4 Inch Shank HSS Step Bits For Metal Aluminum Steel Wood Plastic Built Tough For Pros And DIYers

Five-Piece M35 Cobalt Spiral Step Drill Bit Set for Metal
✔️ Five sizes: 1/4, 3/8, 1/2, 5/8, 3/4 in, 1/4 shank

This five-piece nitriding step drill bit set is built from M35 cobalt HSS for heavy-duty metal drilling and is suitable for aluminum, steel, copper, wood, and plastics. It comes in a blow-molded case for easy transport and features laser-engraved sizes for durability.

✅ 5-piece nitriding step bit set in blow-molded case
✅ Diameters: 1/4", 3/8", 1/2", 5/8", 3/4" (1/4" shank)
✅ M35 cobalt HSS offers high hardness and wear resistance
✅ Spiral flute design minimizes deflection and improves cutting speed
✅ Laser-engraved sizes for clear visibility

💡 What is a typical use for a step drill set and why is cobalt HSS smart?

Step drill sets are handy for quickly creating clean, stepped holes in metal, aluminum, copper, and plastics, with reduced bit wandering and smoother finishes. - handy for upgrading metalworking and DIY projects - cobalt alloy resists heat and wear for longer tool life - spiral flute design improves stability and cutting speed