1/2 in. Drive Fractional Metric Deep Impact Socket Set (29-Piece)Use the best tools for every job with the Sunex 5153DD 1 2 in. Drive Master Double Deep Impact Socket Set. Each socket is forged from Cr Mo alloy steel, designed with radius corners, made with chamfered openings, and marked by laser etching and roll stamping for permanent socket identification. The set includes SAE sizes from 7 16 in. to 1 4 in. and metric sizes 10 mm to 27 mm in deep lengths. These sockets meet ANSI Standards and the set is backed by