Vintage(1966 Pat) Snap-on Shallow S A Ae Socket 6 Point 3/8 Drive 13/16”
- Condition: Used
Seller notes
Snap-On Shallow SAE Socket 6 Point 3/8 Drive 13/16” Patent number - 3,273,430 Good condition, no engravings Check the sellers page, shipping can be combined with other listings for a discount shipping price. The central principle in patent no 3,273,430 is a geometry whereby wrench sockets, etc. grip hexagonal nuts on the flats rather than the corners. There are no sharp inside corners in this geometry. This avoids "rounding" the nut corners and sharp corners in the sockets which lead to stress...
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