The RAK40SDI 40 piece impact rated screwdriver bit set from Ryobi contains a variety of 32x 25mm impact rated screwdriver bits including, Hex, Phillips, Pozi Drive, Security Torx, Torx, & Slot bits as well as 7 x 50mm impact rated Phillips & Torx screwdriver bits. These bits are all heat treated & shatter resistant using impact rated steel and them 10 x stronger for both impact driving applications as well as longer lasting bits when screw driving. The included 60mm magnetic bit holder improves access to the work piece as well as making bit change simple & quick.