The shaft is longer – but the wrench is the same
Stock number | Size | Date Range |
RX – 12 | 3/8 | 1941-1955 |
RX- 14 | 7/16 | 1941-1955 |
RX- 16 | ½ | 1941-1955 |
RX-18 | 9/16 | 1941-1982 |
RX-20 | 5/8 | 1941 – 1982 |
RX-22 | 11/16 | 1941-1982 |
RX-24 | ¾ | 1941-1982 |
RX-26 | 13/16 | 1941-1982 |
RX-28 | 7/8 | 1941-1982 |
RX-30 | 15/16 | 1941-1982 |
RX-32 | 1 | 1941 – 1982 |
RX-34 | 1 1/16 | 1941 – 1982 |
RX-36 | 1 1/8 | 1941 – 1982 |
RX-38 | 1 3/16 | 1941 – 1982 |
RX-40 | 1 ¼ | 1941 – 1982 |
RX-42 | 1 5/16 | 1941 – 1982 |
RX-44 | 1 3/8 | 1941 – 1982 |
RX-48 | 1 ½ | 1941- 1982 |
RX-52 | 1 5/8 | 1941 – 1982 |
The 1946 catalog shows the opening at 45 degrees, the 1953 catalog show a zero degree opening