indexable insert drill bit / for hardened steel / for steel / short

Series 336 is a heavy-duty indexable drill with through the tool coolant, directed on both sides at the cutting edges which guarantees optimum cooling and chip evacuation. Series 337 is the next generation of the KAISER insert drills and feature straight flutes. This design guarantees a short distance for chip evacuation and high radial and torsional rigidity. The 337 drills are suitable for drilling under extreme conditions such as inclined surfaces, semi-circle bores and transverse bores. Both series' are made of case hardened steel construction for maximum rigidity and toughness.