Adding some knowledge to this database thread. I realize it's an old thread, but it is very detailed. I went ahead and purchased a GW 893823
The length of the ratchet at 12" is accurate. The ratchet is ~ 11.7 mm in overall thickness at head, not including the directional switch.
10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 3/8 ", 7/16 ", 1/2 ", 9/16 ", 5/8 ", 11/16 " are ~ 32.0 mm in overall height.
18 mm is ~ 32.4 mm in overall height.
19 mm, 3/4 " is ~ 33.0 mm in overall height.
13/16 " is ~ 34.7 mm in overall height
7/8" is ~ 35.1 mm in overall height.
