Festool 493427 Centrotec HSS Spiral Drill Bit Set, 6mm a precise, compact, and durable solution for drilling wood, metal, and plastic. This set features precision-ground HSS steel that stays sharp longer, ensuring accurate hole drilling and extended service life. Designed around a replaceable drill bit that securely fits into a reusable Centrotec shank, it allows for quick and efficient use with the Festool Centrotec Chuck System. The reusable Centrotec shank is also compatible with all three-jaw chucks, providing no-slip performance. Included in the set are three 6.0mm HSS spiral drill bits, a reusable Centrotec shank, a set screw, and an allen wrench. The innovative Festool Centrotec System enhances the transfer of force between the drill and bit, eliminating bit slippage and reducing drill weight by half a pound while shortening overall length by nearly 1.5 inches. This quick-change system enables faster, more efficient bit changes than traditional keyless chucks and virtually eliminates runout. The tip grind and flute design make these bits i for use on wood, metal, and plastics, making this set a versatile and reliable choice for precision drilling tasks. Model Number: 493427