1/2 Specialty Sockets

Drag link Socke and A18A17t
1/2 drive special sockets 1920 – 1948
Number | Description | Size | Date |
A-15 | Drag Link Adjusting sockets | 1 ¼ | 1925-1970 on |
A-17 | Drag Link Adjusting sockets | 1 | 1925-1970 on |
Stock Number | Description | Date |
A-14 | Alemite Socket | 1926-1929 |
A-16 | Wing Nut Socket | 1925-1929 |
A-18 | Chevy Brake Guide Pin Socket | 1927-1929 |
A-19 | Thin walled Universal joint – Chevy | 1928-1929 |
A-21 | Cadillac Socket rear hub caps | 1929 |
A-22 | Heavy Duty Drag Link | 1929-1932 |
A-23 | Ford Model A Clutch nut | 1929-1931 |
A-26 | Model A shock socket | 1929-1970 on |
No. 35-F | Ford fan shaft nut | 1925-1929 |
No. 36-F | 1923 Ford (Model T?) front Bearing | Pre 1923-1928 |
Stock Number | Description | Size | Date |
S-416 | Bendix Brake Socket | ½ | 1929 |
M-6801 | Timkin Axle Bearing Adjuster |
| 1929 |
S-8501 | Lincoln hub cap |
| 1929 |
S-9002 | Ford Model A Brake Socket | 15/32 | 1929-1931 |
S-9001 | Ford connecting rod | 21/32 | 1929-1931 |
S-9004 | Brake Cam Socket Ford |
| 1931 |
S-9006 | Crank Jaw Joint |
| 1931 |
Special Sockets | Description | Date range |
WSW-96A | 3/16 | 1958-1962 |
1/2 Screw Driver Sockets

1950 Catalog Drawing SW series screw driver sockets
These are pretty but screw drivers.
Stock Number | Description | Date Range |
SW-284 | Std Small | 1950 |
SW-324 | Std Mid | 1950 |
SW-403 | Std Large | 1950 |
Screw driver | Description | Date Range |
SW-284A | 7/16 x 1/16 Screw driver | 1955-1967 |
SW-324A | ½ x 1/16 Screw driver | 1955-1967 |
SW-405A | 5/8 x 5/64 Screw driver | 1955-1967 |
Screw Driver | Description | Date Range |
SP-32A | Phillips driver | 1978 |
SP-42A | Phillips driver | 1978 |
SW-28A | Standard Screw driver small | 1975 – 1978 |
SW-32A | Standard Screw driver med | 1975 – 1978 |
SW-40 | Standard Screw driver large | 1975 – 1978 |
1/2 Crank Case Drain Plug Sockets

Crank Case Drain Plug Sockets. Photo courtesy of Ken and Roseanna Johnson
Crank Case Drain Plug Sockets
These are male squares, and are very rare. The full set here is very hard to find
Number | Size | Date Range |
P-10 | 5/16 | 1925 – 1933 |
P-12 | 3/8 | 1925 – 1933 |
P-14 | 7/16 | 1925 – 1933 |
P-16 | ½ | 1925 – 1933 |
P-18 | 9/16 | 1925 – 1933 |
P-20 | 5/8 | 1925 – 1933 |
P-22 | 11/16 | 1925 – 1933 |
P-24 | ¾ | 1925 – 1933 |
Number | Size | Date Range |
SPP-416 | Olds oil plug | 1962-1965 |
1/2 Allen Head Sockets
Allen | Description | Date Range |
SA-12 | 3/8 hex head | 1953 |
SA-16 | ½ hex head | 1953 |
SA-18 | 9/16 hex head | 1953 |
SA-10A | 5/16 hex head | 1967-1978 |
SA-12A | 3/8 hex head | 1955-1978 |
SA-14A | 7/16 hex head | 1975-1978 |
SA-16A | ½ hex head | 1955-1978 |
SA-18A | 9/16 hex head | 1955-1978 |
SA-20A | 5/8 hex head | 1967-1978 |
1/2 Spark Plug Sockets
Spark Plug Sockets
Stock Number | Size | Date Range |
A-28 | 7/8 | 1929 |
A-30 | 15/16 | 1929 |
A-32 | 1 | 1929 |
A-36 | 1 1/8 | 1929 |
SS-180 | 9/16 | 1941 |
SS-200 | 5/8 | 1941 |
SS-220 | 11/16 | 1941 |
SS-260 | 13/16 | 1941 |
SS-280 | 7/8 | 1941 |
SS-300 | 15/16 | 1941 |
SS-320 | 1 | 1941 |
1/2 Weather head Sockets
Weather head | Description | Date Range |
WH-14 | 7/16 used for soft copper “weather head” fittings | 1950-1955 |
WH-16 | ½ Tube Fitting | 1950 |
WH-20H | 5/8 used for soft copper “weather head” fittings | 1950-1955 |
WH-280 | 7/8 | 1967-1978 |
WH-290 | 29/32 | 1967-1978 |
WH-300 | 15/16 | 1967-1978 |
1/2 Metric Sockets

Top Undated meteric sockets, likely to be near the start. These are hand punched.
Bottom – 1950 and 1951 SW series (Very early metric)
Photo courtesy of Ken and Roseanne Johnson
The Metric System
The French came up with this system around 1800. My personal view is they did this because they are French, but others feel it was an attempt to unify all the local measurement systems in Europe. A meter is actually defined as 1/10,000,000 the distance from Equator to North Pole. Of course they were French so it isn’t, but they thought it was. I think there may have been imports from the Benelux region in the 1930s that required metric tools and this first start to appear in very small numbers at that time. They really don’t find US popularity until the 1960s with Japanese imports.
Stock Number | Size | Dates |
SW-10M | 10mm | 1958-1967 |
SW-11M | 11mm | 1958-1967 |
SW-12M | 12mm | 1958-1967 |
SW-13M | 13mm | 1958-1967 |
SW-14M | 14mm | 1958-1967 |
SW-15M | 15mm | 1958-1967 |
SW-16M | 16mm | 1958-1967 |
SW-17M | 17mm | 1958-1967 |
SW-18M | 18mm | 1958-1967 |
SW-19M | 19mm | 1958-1967 |
SW-20M | 20mm | 1958-1967 |
SW-21M | 21mm | 1958-1967 |
SW-22M | 22mm | 1958-1967 |
SW-23M | 23mm | 1958-1967 |
SW-24M | 24mm | 1958-1967 |
SW-25M | 25mm | 1958-1967 |
SW-26M | 26mm | 1958-1967 |
SW-26M | 26mm | 1958-1967 |
SW-27M | 27mm | 1958-1967 |
SW-28M | 28mm | 1958-1967 |
SW-29M | 29mm | 1958-1967 |
SW-30M | 30mm | 1958-1967 |
SW-31M | 31mm | 1958-1967 |
SW-32M | 32mm | 1958-1967 |
Stock Number | Size | Dates |
S-14M | 14mm | 1958-1965 |
S-17M | 17mm | 1958-1965 |
S-19M | 19mm | 1958-1965 |
S-20.6M | 20.6mm | 1958-1965 |
S-22M | 22mm | 1958-1965 |
S-27M | 27mm | 1958-1965 |
Stock Number | Size | Dates |
TWM-101M | 10mm | 1967-1970 on |
TWM-111M | 11mm | 1967-1970 on |
TWM-121M | 12mm | 1967-1970 on |
TWM-131M | 13mm | 1967-1970 on |
TWM-141M | 14mm | 1967-1970 on |
TWM-151M | 15mm | 1967-1970 on |
TWM-161M | 16mm | 1967-1970 on |
TWM-171M | 17mm | 1967-1970 on |
TWM-181M | 18mm | 1967-1970 on |
TWM-191M | 19mm | 1967-1970 on |
TWM-201M | 20mm | 1967-1970 on |
TWM-211M | 21mm | 1967-1970 on |
TWM-221M | 22mm | 1967-1970 on |
TWM-231M | 23mm | 1967-1970 on |
TWM-241M | 24mm | 1967-1970 on |
TWM-251M | 25mm | 1967-1970 on |
TWM-261M | 26mm | 1967-1970 on |
TWM-271M | 27mm | 1967-1970 on |
Stock Number | Size | Dates |
SAM-13 | 8 mm | 1970 |
SAM-11 | 6 mm | 1970 |
SAM-10 | 10 mm | 1970 |
SAM-12 | 12 mm | 1970 |
SAM-17 | 17 mm | 1970 |