Hexagonal screwdrivers PREMIUM QUALITY with ball end, blades in satin chrome-vanadium steel, precision hardened BLACK-TIP with surface hardness of 58 ± 2 HRC and torque 20% higher than DIN 8764. Hypoallergenic, anti-slip, soft and comfortable ERGOFORM handles made of SANTOPRENE® that guarantees maximum grip for fast and precise work. Size indication on the handle head. Compliant with RoHS and REACH directives.