
Originally Posted by
uninformed
.......
John, I have no proof of snap-on inventing sockets.
I suspect that they have been invented a number of times, with patents for various aspects of the design. From my reading they have only become commonly used (in maintenance - probably first used extensively in manufacture) round about WW2, possibly because they were too expensive for most people prior to that.
They have become far more generally used in my lifetime, perhaps because of the more general specification of torques for tightening (although there is a question as to which is cause and which is effect!). I think the about the only torque specified in the Series 1 factory manual is the head bolts - but by the time the 90/110 manual was produced, torques were specified for almost every bolt on the vehicle.
John
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
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