Four Spiral Flute Cobalt Step Drill Bit, 1/4"-1-1/8", Hex Shank, 1/4"
Four-spiral flute cobalt step drill bit for metal, wood, and plastic with TiAlN coating for hardness. Noted for sharpness and fast cutting; some users report tip wear over time
Highlights
- four-spiral-cutting blades
- TiAlN coating for hardness
- M35 cobalt HSS step drill with 1/2" to 1-1/8" range
Pros
- four cutting blades for faster cutting
- TiAlN coating increases surface hardness
- cobalt HSS material suitable for various metals
- includes multiple steps from 1/2" to 1-1/8"
- impact-ready hex shank compatibility
Cons
- durability can vary; tips may break with heavy use
- mixed feedback on suitability for steel work
Best For
Features
- Four spiral flutes provide faster, smoother cutting with decisive guidance
- TiAlN coating adds 89HRC surface hardness for increased wear resistance
- M35 cobalt HSS step drill suitable for metal, wood, plastic, and aluminum sheets
- Drill size range from 1/2" to 1-1/8" with 7/8" and 1-1/8" labeled options
- Includes a 1/4" hex shank for compatibility with impact drivers and tools
