Product dimensions : 55 x 15 x 15 mm (LxWxD) Drive : DIN 3126, ISO 1173, style E 6.3. Application : For all types of screw applications in trade and industry. Application : For a secure hold on screws. Extra : With strong permanent magnet. Standards : DIN 7424 Material : High grade chrome-vanadium steel, through hardened. DIN 3126, ISO 1173, Style E6,3