The wera bit check 12 wood 1 with ring magnet rapidaptor is a long life bit set which is designed for compact and organised tool storage utilising a unique combination of special material hardening and precision manufacture 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 holds up to 8