Built with high-quality durable materials, this Festool bit holder is suitable for use with all Festool cordless drills with FastFix interface and the TI15 Festool impact screwdriver. Combining a standard chuck and bit holder in one while being 50% smaller and 80% lighter than a standard chuck, the Festool Magnetic bit holder allows you to Quickly change between drilling, countersinking and screwdriving.