The wera bit check 30 wood 1 is a long life bit set supplied with a ring magnet rapidaptor it is designed for compact and organized tool storage utilising a unique combination of special material hardening and precision manufacturing torsion bits are designed to prevent premature wear for improved service life the bits are designed for driving screws into normal construction timbers and materials through hardening creates a much harder wearing bit the clever ring magnet rapidaptor bit holder hol