Stahlwille Plug Socket 51S, 12.7mm Drive x 83mm Overall Length, 1 Piece

High-quality HPQ series 1/2" square-head deep socket with AS-drive (surface contact). Drive size (SQ; inch): 1/2", Size (mm-inch): 20.8-13/16 Socket outer diameter (d1; mm): 27.7, Drive outer diameter (d2; mm): 26, Socket cavity inner diameter (d3; mm): 20 Bolt contact inner depth (t1; mm): 22, Maximum depth (t2; mm): 66.2 Total length (L; mm): 83, Weight (g): 196 Hexagonal type.