S elta Taiwan 10pc 3/8″ Dr 6pt 63mmL Deep Socket Set: 8-10-12-13-14-15-16-17-18-19mm. 3/8″ Dr. 6pt flank 63mm full length deep socket set including: 8-10-12-13-14-15-16-17-18-19mm. Improves productivity when removing or installing fasteners in hard to reach places.