- High quality Impaktor bits for hexagon socket screws. - Impaktor technology offers an above-average service life even under extreme circumstances. - Enhanced friction resistance, 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. - 1/4'' hexagon, suitable for holders as per DIN ISO 1173-D 6.3.