Includes 23 pieces.1320RZ ratcheting ring wrenches 1/4 x 5/16, 3/8 x 7/16, 1/2 x 9/16 and 5/16" x 11/32".6Z double open-end wrenches 1/4 x 5/16, 5/16 x 11/32, 3/8 x 7/16, 1/2 x 9/16, 19/32 x 11/16, 5/8 x 3/4, 13/16 x 7/8".1952Z combination wrenches 1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8"