The Ingersoll-Rand impact socket set provides everything you need in a blow-molded case: 7/16in., 1/2in., 9/16in., 5/8in., 11/16in., 3/4in., 13/16in., 7/8in., 15/16in., 1in., 1 1/16in., 1 1/8in., 1 1/4in. Impact-grade chrome-molybdenum steel with laser etching.