3pcs Blue Coating Hexagonal Shank Cone Step Drill Bit Pagoda for Sheet Metal
- Compared with ordinary twist drill bits, these pagoda drill bits are not easy to break off, effectively saving use cost.
- High-speed steel construction can extend the life of the cutting edge even under extreme temperatures.
- Unique step structure, a single drill bit can drill holes in multiple different sizes.
- This drill bit makes it possible to achieve deburring, chamfering, hole expansion and other functions that twist drill bit cannot complite.
- Blue coating enhances drill bits' resistance to heat, corrosion and rust.
