Festool 492525 Centrotec Self-Centering Bit 5mm Self-centering 5mm drill bit for fastening cabinet hardware Centering mechanism rotates freely, eliminating burning or marring of your finished surface Features brad-point tip for ease of use and control Long, precision milled hex shank eliminates wobble, or run out during use Fits Festool Centrotec Chuck as well as standard and keyless chucks