Suitable for bits with 1/4 inch hexagon drive (Wera connecting series 1) Kraftform holder with anti-roll feature, multi-component, bayonet blade and bit magazine Tough viscous bits for universal use Tough viscous bits for universal us Adaptor bayonet with stainless sleeve and strong permanent magnet Kraftform holder with anti-roll feature, multi-component, bayonet blade and bit magazine, Weight: 0.440924524 pounds, Manufacturer: WERA