Motorman55
Well-known member
I picked this S-K set up today at a local antiques shop. The metal label inside the case reads S-K TOOLS Chicago, Ill 60632
Its a 1/4" Drive Metric set with a 40 tooth round head ratchet wrench marked S-K USA 45170 USA on one side and Pat. No. 2232477 on the other side.
All the sockets are 6-point type with dual line band in 300 series starting with 7m/m and continuing with, 8, 9, 10, 11, 12, 13 m/m then skips to 15 m/m and a 17m/m.
Included is a short extension #45159 S-K USA and a 13/16 Spark plug socket # 4426 S-K USA.
How old is this set and what pieces are missing/needed to complete?
Thanks for info.
Its a 1/4" Drive Metric set with a 40 tooth round head ratchet wrench marked S-K USA 45170 USA on one side and Pat. No. 2232477 on the other side.
All the sockets are 6-point type with dual line band in 300 series starting with 7m/m and continuing with, 8, 9, 10, 11, 12, 13 m/m then skips to 15 m/m and a 17m/m.
Included is a short extension #45159 S-K USA and a 13/16 Spark plug socket # 4426 S-K USA.
How old is this set and what pieces are missing/needed to complete?
Thanks for info.

S-K changed their HQ to Franklin Park in early 1971. So, your box is 1969 to 1971. 
