Unika Step Bit
- The ladder of its unique structure, a bit can open a variety of specifications of aperture.
- Do not need to use center punch, compared with the ordinary twist drill is not easy to be broken.
- Deburring, chamfering, elliptic hole enlargement, twist drill, the function of them was unable, but it is possible
- High speed steel makes it last longer.
- Hexagonal shank design prevents slip in drill chuck.
- Double cutting blades and X-type openings design ensure a faster and smoother cutting.