Application:Suitable for bits with 1/4" external hexagon drive as per DIN ISO 1173-C 6.3 and Wera connection series 1 Design:Bit holder with strong permanent magnet; BiTorsion bits for long service life, tough, for universal use. Take it easy tool finder: Size stamping and tips with colour coding to find the required bit quickly. Handle:Kraftform Stubby with anti-roll protection, multi-component, integrated magazine