The 9/32 sockets 1925 - 1945
M-4 1925-1926 – gripper driver. This does not show up in the catalogs. Very few examples are known, but here are 2 examples
9/32 sockets 1925 – 1945
There are 2 basic socket styles. The first style exists from 1925 to 1929. After this, the newer style in a Nickel finish existed into the 1940 when Nickel shortages caused an oil finish to be used
Name | Description | Year first Appeared | Year Last Appeared |
M-8 | ¼” Socket | 1925 | 1929 est |
M-9 | 9/32” Socket | 1925 | 1929 est |
M-10 | 5/16” Socket | 1925 | 1929 est |
M-11 | 11/32” Socket | 1925 | 1929 est |
M-12 | 3/8” Socket | 1925 | 1929 est |
M-14 | 7/16” Socket | 1925 | 1929 est |
M-408 | ¼ “ Square | 1925 | 1929 est |
M-410 | 5/16” Square | 1925 | 1929 est |
The set contained a single broached hex.
The set contained a single broached hex. Early
The set contained a single broached Square in 2 sizes, and when the socket style changed, it became double broached
Name | Description | Year first Appeared | Year Last Appeared |
M-6 | 3/16” Socket | 1933 | 1942 |
M-7 | 7/32” Socket | 1933 | 1942 |
M-8 | ¼” Socket | 1931 | 1942 |
M-9 | 9/32” Socket | 1931 | 1942 |
M-10 | 5/16” Socket | 1931 | 1942 |
M-11 | 11/32” Socket | 1931 | 1942 |
M-12 | 3/8” Socket | 1931 | 1942 |
M-14 | 7/16” Socket | 1931 | 1942 |
M-408 | ¼ “ Square | 1931 | 1942 |
M-410 | 5/16” Square | 1931 | 1942 |
MI-15 | 15/64 Socket | 1937 | 1942 |
MI-17 | 17/64 Socket | 1937 | 1942 |
A metric set was available, but I have not seen any – It is very rare
Name New Style | Description | Year first Appeared | Year Last Appeared |
M-6 | 3/16” Socket | 1939 | Unknown |
M-4M | 4mm | 1939 | Unknown |
M-5M | 5mm | 1939 | Unknown |
M-6M | 6mm | 1939 | Unknown |
M-7M | 7mm | 1939 | Unknown |
M-8M | 8mm | 1939 | Unknown |
M-9M | 9mm | 1939 | Unknown |
M-10M | 10mm | 1939 | Unknown |
In 1941 a series of deep sockets were introduced
Here is the set that remained through 1945
Name | Description | Year first Appeared | Year Last Appeared |
SM-6 | 3/16 Deep socket | 1941 | 1942 |
SM-7 | 7/32 Deep socket | 1939 | 1942 |
SM-10 | 5/16 Deep socket (radio) | 1937 | 1942 |
SM-11 | 11/32 Deep socket (radio) | 1937 | 1942 |
SM-12 | 3/8 Deep socket (radio) | 1937 | 1942 |
SM-14 | 7/16 Deep socket (radio) | 1937 | 1942 |
SM-15 | 15/32 Deep socket (radio) | 1937 | 1942 |