BRIO SOCKET SET AIR 1/2 12 CORNER 10-32MM 14 PIECES_x000D_ Made of chrome molybdenum steel with ball retaining groove and hole hexagonal profile_x000D_ for hand and impact wrenches , 12.5 mm 1/2 " driver 14 impact wrenches, each 78 mm overall length combustion - Socket wrench tip, square-shaped driver 12.5 mm (1/2 "), SW : 10 mm impact socket wrench, internal square drive 12.5 mm (1/2"), SW: 12 mm impact socket wrench, Internal square driver 12.5 mm (1/2 "), SW: 13 mm impact socket socket wrench, internal square drive 12.5 mm (1/2"), SW: 14 mm impact socket wrench, internal square drive 12.5 mm (1/2 "), GB: 15 mm