Meets your requirements : Robust and precise bits for general fastening in trade and industry. Increases your efficiency : Best rotation characteristics for stable fastening processes. Saves time : Simple and quick recognition of profile sizes thanks to contrasting laser marking. Product dimensions : 50 x 8 x 9 mm (LxWxD) Drive : DIN 3126, ISO 1173, style E 6.3. Application : For all types of screw applications in trade and industry. Standards : DIN ISO 2351-3 Material : High grade chrome-vanadium steel, through hardened. DIN 3126, ISO 1173, Style E6,3