Festool 498796 Centrotec Installer''s Set with Imperial Brad Point Bits Packed with solutions for just about any drilling/driving need, this set puts the right bit, countersink, bit holder or extender in your hands No-slip, quick-change shanks for use with the Festool Centrotec System or any keyless or three-jaw chuck, so you spend less time fumbling around Festool Centrotec drill and driver bits are precisely machined from high-grade steel so you get a proper fit, reduced run out and long life Compatible with any drill keyless chuck using included Centrotec adapter