Gedore INX1910 1/2 M10 x 55 mm Screwdriver Bit Socket Silver

Zoro Tools

Square drive as per DIN 3120 - C 12.5, ISO 1174, with ball retaining groove Hand-operated, knurled grip Chrome-plated With pressed-in pin in GEDORE vanadium special steel, manganese-phosphated Tip as per DIN 2325 * not standardised

Amazon

Hand-operated, knurled grip Material: vanadium steel Square drive with ball retaining groove, Weight: 0.19400679056 Pounds, Manufacturer: Gedore