- High hardness step drill bit that can replace 15 individual drill bits.
- High-speed steel HSS4241 with titanium coating to easily cut through steel, aluminum, copper, plastic, and wood.
- Automatically deburr holes while drilling to keep the drill bit clean.
- Double cutting blades and X-type openings design ensures a faster and smoother cutting.
- 3-sided shank design prevents slip in drill chuck.
- SIZES: 4mm, 6mm, 9mm, 12mm, 15mm, 18mm ,21mm, 24mm, 27mm, 30mm, 33mm, 36mm, 39mm, 42mm, 45mm.
- 10mm handle.