Four different screw profiles (hexagonal socket screws sizes 3.0; 4.0; 5.0; 6.0) can be operated with only one bit. Significant weight savings of over 50 %. The operability of the large profiles is made possible by the spring compression of the small tips. The bit has a 1/4" hexagon drive (Wera connection series 1) and can therefore also be used with e.g. bit ratchets and bitholding screwdrivers with Rapidaptor.Includes: 1x 9506 SB 4-in-1 Bit 1, 3; 4; 5; 6 x 37 mm; 1x 9506 4-in-1 bit 1: 3.0; 4.0; 5.0; 6.0x37