Special featuresFulfills your requirements: Robust, precisely fitting bits for general screwdriving applications in trade and industry.Saves time: Easy, quick identification of the profile size thanks to high-contrast laser marking.Connection: DIN 3126, ISO 1173, form C 6.3.Application: For all screwdriving applications in industry and trade.Bits: Reduced, twisted profile.Extra: Conical tip makes it easier to insert into the screw. Material: High-quality chrome-vanadium steel, hardened throughout.DIN 3126, ISO 1173, Form C6,3Technical dataInternal square 1 (Robertson): #2 Internal square 2 (Inch): 2.8 Total length (mm): 25 mmwith battery: No