25-pieces metal drill set (cobalt alloy)
The HSS-Co twist drill has a long service life when drilling stainless steel. This extended life is ensured by the metal alloy with 5% cobalt content and the HSS steel ground from the solid with excellent surface finish, wear resistance and heat protection. The two cutting edges and two spiral grooves quickly remove the chip material and thus additionally extend the service life. This drill drills alloy and non-alloy steel, stainless steel, cast iron, cast steel and acid and heat resistant steel.
The shank is cylindrical (the shank diameter corresponds to the drill bit diameter). It is used with drill stands and drill screwdrivers.
- Cobalt alloy and solid ground HSS steel for wear and heat resistance
- Two cutting edges/spiral grooves quickly remove drilling chips, thus additionally extending service life
- The drill tip with cross-grinding enables active drilling and perfect centring without wandering
- BoschGSB 12V-15, GSB 12V-35, GSB 16 RE, GSB 18V-110 C, GSB 18V-21, GSB 18V-28, GSB 18V-55, GSB 18V-60 C, GSB 20-2, GSB 21-2 RCT