3/8 Dr Standard and Deep Length Impact Set (1643RD). Set contains 12 Point Fractional sizes 5/16″ to 3/4″ and Metric sizes 8mm to 19mm in both standard and deep lengths plus a 3″ extension/ 3/8″ x 3/8″ universal joint and 1/4″ hex x 3/8 square adapter. Set Contains. 43 Pieces. 3/8 Dr. Standard/Deep SAE/Metric Set – 12 Point. Molded Storage Case. Weight: 9.64 lbs.