Single End Flare Nut
Single end Flare Nut
These are the earliest I know of. They were an improvement over the normal open end wrench, because they damaged the nut less and had a better grip. The photo is date stamped 1931 (out of the range of the catalog listing)
Size | Stock Number | Date Range |
¾ | 924 | 1937 |
7/8 | 928 | 1937 |
1 | 932 | 1937 |
1 1/16 | 934 | 1937 |
1 1/8 | 936 | 1937 |
1 3/16 | 938 | 1937 |
1 ¼ | 940 | 1937 |
1 5/16 | 942 | 1937 |
1 3/8 | 944 | 1937 |
1 7/16 | 946 | 1937 |
1 ½ | 948 | 1937 |
1 5/8 | 952 | 1937 |
1 ¾ | 956 | 1937 |
