Stahlwille (1/4SQ) Spline Socket 3/8 inch 40ASP-12

- Drive size (SQ; inch): 1/4, Spline size (mm): 12, Size (inch): 3/8 Socket outer diameter (d1; mm): 13.8, Drive outer diameter (d2; mm): 13.8, Socket cavity inner diameter (d3; mm): 8.6 Bolt contact inner depth (t1; mm): 8.7, Maximum depth (t2; mm): 12.6 Total length (L; mm): 23, Weight (g): 18 High-quality HPQ series 1/4" SQ spline socket.