This witte bit pack contains 10 50mm pz1 pozidriv industrial bits witte industry bits are manufactured to be high reliable quality bits for use in industrial screw driving application wittes industrial bit program is convincing due to the broad and in depth range of products as well as their equally high quality based state of the art manufacturing methods in order to assure the high demands of industry and crafts a complex hardening process guarantees a permanent hardness in the range of 5