IS 6131 : 1980 Technical requirements for hand operated wrenches (spanners) and sockets

1 Scope

Specifies technical requirements, such as minimum values forhardness and test torque for hand-operated wrenches (spanners) andsockets of the following series:

Series A - Alloy steel ring wrenches (spanners), box wrenches(spanners) and tee wrenches (spanners)

Series B - Carbon steel ring wrenches (spanners) and boxwrenches (spanners)

Series C - Alloy steel open jaw wrenches (spanners)

Series D - Carbon steel open jaw wrenches (spanners)

Series E - Hand-operated square-drive sockets.