Four Spiral Flute Cobalt Step Drill Bit Set (1/8"-7/8"), 3 pcs
A cobalt step drill bit set with four spiral flutes for faster cutting on metal, wood, and plastic. Four-edge design enhances cutting speed; rated for impact-ready use. Note: customer feedback mentions mixed durability and variable suitability for steel work
Highlights
- four cutting edges for efficiency
- TiAlN coating for hardness
- wide 1/8"-7/8" size range
Pros
- four spiral flutes for faster cutting
- coated for hardness and wear resistance
- comprehensive size range (1/8" to 7/8")
- impact-ready hex shank
- suitable for multiple materials
Cons
- mixed durability reports about tip breakage
- variable performance on steel work
Best For
Features
- Four spiral flutes for faster, smoother cutting action
- TiAlN coating with 89HRC surface hardness for extended wear resistance
- M35 cobalt HSS step drill suitable for metal, wood, plastic, and aluminum
- 34 total step sizes from 1/8" to 7/8" in a three-piece set
