7" long drive blades. Blades feature hex drive on one end and same size ball hex on the opposite end. Blades are heat S-2 steel heat treated to RC 56/62. Set includes, ratcheting "T" handle, and 2 way screwdriver / "T" handle. Blow molded plastic storage case. Sizes includes: 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16" hex and 5/16" ball hex.