High quality Impaktor bits for hexagonal socket screws. The Impaktor technology offers an above-average service life even under extreme circumstances. Enhanced friction resistance, thanks to the rough diamond-particle coating on the bit tip, prevents any slipping out of the screw head. Hex-Plus ensures a greater contact surface in the head of the screw. The notching effect is therefore reduced to a minimum and damage to the screw head more or less eliminated. ¼" hexagon, suitable for holders as per DIN ISO 1173-F 6.3. Features and Benefits • For socket head screws • Impaktor technology for above-average service life • Particularly suitable for use with customary impact drivers • Diamond coating for a secure fit in the screw, literally bites into the screwhead to prevent cam-out • 1/4" hexagon drive (Wera connecting series 4) Contents 1x 840/4 IMP DC Impaktor bits SB, 4 x 50 mm; 1x 840/4 IMP DC Impaktor bits: 4.0x50