Using your Bosch nutsetter is easy. First, insert the 1/4 - inch hex shank into your standard quick - change driver. You're all set to drive those heat - treated or case - hardened screws. The precision - formed tip ensures a proper fit, so you can work more efficiently. When using it, make sure to apply steady pressure to avoid any slipping. For maintenance, after each use, wipe the bit clean with a dry cloth. Store it in a dry place to prevent rusting. This will help keep your nutsetter in great shape and ensure it lasts a long time, just like its fully hardened and tempered design promises.