What's the difference between a wrench T15 and a 15IP?
Size is different, T15 is phi 3.5*23*66, 15IP is phi 3.5*45 and handle width 40
Form is different, T15 is L type wrench, and 15IP is straight type with handle
Different materials, T15 is 15IP is 45# steel, chrome vanadium steel, after heat treatment and blackening
