Three groups of edge, each in cutting process is responsible only for 1/3 of the workload, and inside each also has a cutting edge, also due to the edge, respectively, the burden of the characteristics of part of the cutting work, making the drill hole is not easy to produce the phenomenon of collapse. It's easy to use with long service life. The precise design will ensure its practicability in the work of high performance. Perfect and practical tool for metal hole cut.

Features

- Color: Silver.
- Material: Hard alloy.
- Outside diameter Size: 16mm, 18mm, 20mm, 22mm, 25mm,26mm,28mm, 30mm, 35mm, 40mm,45mm, 50mm, 53mm.
- Positioning accuracy withnot shift.
- Appliacation: Can be used for bench drill, electric drill chuck with the use of machine tools.
- Suitable for the stainless steel plate, steel, casting, aluminum alloy, iron, metal plate, iron plate and other kinds of metal plate drilling.
- Chip removal, with excellent performance, edge, wear-resistant.
- Excellent cutting ability and very stable and accurate.