M35 cobalt HSS step drill bits, four-spiral flute, 1/8"-7/8" (3 pcs) hex shank
Four-groove cobalt HSS step drill bits for durable, precise drill holes in metal, wood, and plastic. Customers report sharpness, smooth cutting, and reliable durability for DIY and professional use
Highlights
- four-spiral flute stability
- M35 cobalt HSS material
- improved drilling accuracy
Pros
- Four-groove stability during cutting
- Higher drilling accuracy
- Increased cutting speed
- Durable M35 cobalt HSS material
- Sharp and smooth cutting experience
Cons
- Limited to specified sizes (1/8"-7/8")
- Some users note wear resistance varies by material
Best For
Features
- Four-groove design improves cutting stability and accuracy
- M35 cobalt high-speed steel offers high hardness and wear resistance
- TiAlN coating provides high hardness and oxidation resistance
- Suitable for drilling aluminum, stainless steel, metal, wood, and plastic
