Patented Wright Drive distributes contact over a larger surface area for greater gripping power and strength.

| PART NUMBER | NOM. SIZE | SHAPE | L | DS | DD | BD |
|---|---|---|---|---|---|---|
| 8134 | 1-1/16" | II | 2-9/32" | 1-41/64" | 1-41/64" | 5/8" |
| 8136 | 1-1/8" | II | 2-9/32" | 1-11/16" | 1-11/16" | 21/32" |
| 8138 | 1-3/16" | II | 2-9/32" | 1-49/64" | 1-49/64" | 21/32" |
| 8140 | 1-1/4" | II | 2-9/32" | 1-53/64" | 1-53/64" | 3/4" |
| 8142 | 1-5/16" | II | 2-11/32" | 1-57/64" | 1-57/64" | 49/64" |
| 8144 | 1-3/8" | III | 2-7/16" | 1-61/64" | 1-3/4" | 25/32" |
| 8146 | 1-7/16" | III | 2-1/2" | 2" | 1-3/4" | 7/8" |
| 8148 | 1-1/2" | III | 2-9/16" | 2-9/64" | 1-3/4" | 55/64" |
| 8150 | 1-9/16" | III | 2-5/8" | 2-13/64" | 1-3/4" | 1" |
| 8152 | 1-5/8" | III | 2-11/16" | 2-1/4" | 1-3/4" | 1" |
| 8154 | 1-11/16" | III | 2-3/4" | 2-25/64" | 1-15/16" | 1" |
| 8156 | 1-3/4" | III | 2-13/16" | 2-33/64" | 1-15/16" | 1-3/32" |
| 8158 | 1-13/16" | III | 2-7/8" | 2-37/64" | 1-15/16" | 1-1/8" |
| 8160 | 1-7/8" | III | 2-15/16" | 2-41/64" | 2-1/4" | 1-1/8" |
| 8162 | 1-15/16" | III | 3" | 2-3/4" | 2-1/4" | 1-7/32" |
| 8164 | 2" | III | 3" | 2-3/4" | 2-1/4" | 1-7/32" |
| 8166 | 2-1/16" | III | 3-1/16" | 2-61/64" | 2-1/4" | 1-7/32" |
| 8168 | 2-1/8" | III | 3-1/16" | 2-61/64" | 2-1/4" | 1-3/8" |
| 8170 | 2-3/16" | III | 3-9/32" | 3" | 2-1/4" | 1-3/8" |
| 8172 | 2-1/4" | III | 3-9/32" | 3-5/64" | 2-1/4" | 1-3/8" |
| 8174 | 2-5/16" | III | 3-9/32" | 3-11/64" | 2-1/4" | 1-3/8" |
| 8176 | 2-3/8" | III | 3-5/16" | 3-1/4" | 2-1/4" | 1-3/8" |
| 8178 | 2-7/16" | III | 3-3/8" | 3-5/16" | 2-1/4" | 1-3/8" |
| 8180 | 2-1/2" | III | 3-7/16" | 3-3/8" | 2-1/4" | 1-3/8" |
| 8182 | 2-9/16" | III | 3-1/2" | 3-3/8" | 2-1/4" | 1-1/2" |
| 8184 | 2-5/8" | III | 3-9/16" | 3-9/16" | 2-1/4" | 1-3/4" |
| 8188 | 2-3/4" | III | 3-13/16" | 3-23/32" | 2-43/64" | 1-3/4" |
| 8190 | 2-13/16" | III | 3-13/16" | 3-27/32" | 2-43/64" | 1-3/4" |
| 8194 | 2-15/16" | III | 3-7/8" | 3-31/32" | 2-43/64" | 2" |
| 8196 | 3" | III | 4-3/16" | 4-1/32" | 2-43/64" | 2" |
| 8197 | 3-1/8" | III | 4-3/16" | 4-3/16" | 2-43/64" | 2-13/64" |
| 8198 | 3-3/8" | III | 4-1/2" | 4-35/64" | 2-43/64" | 2-13/64" |
| 8199 | 3-1/2" | III | 4-1/2" | 4-35/64" | 2-43/64" | 2-13/64 |
| 8199 | 3-1/2" | III | 4-1/2" | 4-35/64" | 2-43/64" | 2-13/64 |