Hammer drill bit, Longlife Quadro-L with SDS-plus drill chuck

No hooking in and running off centre

The symmetrical 4 x 90° cutting edge geometry prevents the hooking in or running off centre of the drill bit when striking reinforcement or hard pebbles in concrete.

Perfect drilling properties

• Thanks to head geometry that is tailored to the drill bit diameter.


• 5-16 mm: One-piece carbide element (Fig. 1) for a high degree of stability thanks to the maximised surface for connection with the steel body


• 18-32 mm: Multi-piece cemented carbide element (Fig. 2) for faster drilling progress and improved buffering of the torsional forces thanks to the trisection design

Optimum guidance in drilled hole

Thanks to the drill geometry with 4 cutting edges and 4 spirals.

Constant drilling speed

Thanks to special head geometry

Precise drilling

Thanks to self-centring tip