Meets your requirements : Robust and precise bits for general fastening in trade and industry. Saves time : Simple and quick recognition of profile sizes thanks to contrasting laser marking. Increases your efficiency : Best rotation characteristics for stable fastening processes. Product dimensions : 50 x 6 x 7 mm (LxWxD) Application : For fastening and unfastening positive/ negative screws in switchboard systems, fuse boxes, terminal blocks and relays. DIN 3126, ISO 1173, Style E6,3