Tecomec Chainsaw high quality T-Wrench 5/8" (16mm) for spark plugs and 1/2" (13mm) for bar nuts.
This T-wrench works on chain saw models like the McCulloch Pro Mac 555, 700, CP70, 600 Series, 1600, 110, 120, 130, 140 and Titan Series plus more.
This wrench works on Jonsered models like some of the 510 models 520 & 450.
This wrench works on Partner like the models 500 and 5000.
This T-Wrench will work on most brands and models of chainsaws that use a 16mm X 13mm wrench.
The barrel length is 2-3/16" and the shaft length is 5-7/8"