IMPACT SOCKET ADAPTER SET, BLACK OXIDE, INPUT DRIVE SHAPE SQUARE, INPUT DRIVE SIZE 1/4 IN, 3/8 IN, 1/2 IN, 3/4 IN, 1 IN, INPUT DRIVE GENDER FEMALE, OUTPUT DRIVE SHAPE SQUARE, OUTPUT DRIVE SIZE 1/4 IN, 3/8 IN, 1/2 IN, 1 IN, OUTPUT DRIVE GENDER MALE, LOCKING YES, OVERALL LENGTH 1 1/16 IN, 2 15/16 IN, IMPACT, INSULATED NO, NON-SPARKING NO