The TopSaw multi-tool incorporates all the tools you need for servicing your chain saw when you are in the field.
The 12 tools it includes are 10mm, 13mm, 16mm, 19mm and 21mm sockets (the first four of which also double for 3/8", 1/2", 5/8" and 3/4" sizes), 5/16" and 1/8" wide slot screwdrivers, T25 and T27 Torx wrenches, a 4mm hex wrench, a slim bar groove cleaner and a built-in saw-file handle.
The 4 1/2" long tool can be carried in a pocket or in the nylon sheath (with belt loop) that comes with it. It can save a lot of grief if you are in the bush and your chainsaw tools are somewhere else.
The TopSaw multi-tool can service all Craftsman, Efco/Oleo Olympik, Makita, Redmax, Cub Cadet, Hitachi, McCulloch (except models made before 1990), Shindaiwa, Dolmar, Husqvarna, Poulan, Poulan Pro, Solo, Echo, Jonsered, Stihl (except models 051, 075, 076 and 090 made before 1990) and Tanaka chain saws.
Also available in a set with the chain-saw filing vise providing everything you need for servicing your chain saw when you are in the field (available separately).