Multi Setp Drills Polledri

This tool manufactured in HSS + TiN is used for making a large number of holes of different diameters in any material,
ferrous or non ferrous.
It is an improvement on the conical drills because the finish of the hole is exactly round and is very easy to use.
SIZE 1: From Diam. 4 to Diam. 12
SIZE 2: From Diam. 4 to Diam. 20
SIZE 3: From Diam. 4 to Diam. 30
SIZE 4: From Diam. 5 to Diam. 32,5 *
SIZE 5: From Diam. 6 to Diam. 38
Shank with 3 flats
* Special eletricians (PG 7 – 21)