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. Increases your efficiency : Optimum access to low-lying screws thanks to extra-long 90 mm bits. Product dimensions : 90 x 6 x 7 mm (LxWxD) Drive : DIN 3126, ISO 1173, style E 6.3. Application : For all types of screw applications in trade and industry. Extra : Hole in the bit tip for TORX ½ Tamper Resistant security screws. Material : High grade chrome-vanadium steel, through hardened. DIN 3126, ISO 1173, Style E6,3