Flank Drive, was used by snap on and had a patent on it until 1990 it is a offset on 12point head on sockets and wrenches, it helped stop rounding of bolt heads, patent was up in 1990 and every on switched to it . Craftsman called there version Craftsman Headlock, in the 1992 in catalog has...
If you are a collector you may collect the =V= or the -V- or even the G 1980 -1989 turned the way it should be , But if you are a mechanic you need the upside down G 1990 and newer series with Headlock. Snap on had the patent until around 1990.
Flank Drive, Craftsman Headlock started in 1990 with inverted G sockets, all G sockets made 1990 and newer are inverted with the G is up side down , The G1 and C2 all are inverted, G2D not inverter but has different model numbers, also 1990 changed from Easco to Danasher
Craftsman Inverted G socket time line and why?
G = Easco, ca. 1980 - 1989 perhaps as early as 1979 Was these inverted ? No?
Inverted started with the change from Easco to Danaher ?
G continued = Danaher, ca. 1990 - 2011 Was this when the inverted G started ? Yes ? was this the first Craftsman...
I got my first craftsman professional tool set in 1978. I was 20 years old and it had bars in it. I ask the guy ( he was 35 and worked for Ford) how to use them He did not know what they was for. I was looking in a old tool book today and found they are crossbars to make a flex power handle...