The Ultimate all-in-one Chainsaw Tool The TopSaw is a hand tool that has 9 tools which allows the user to work on a chainsaw in the field. The tool easily fits in your pocket but also comes with a sheath so you can hang it on your belt. The TopSaw contains: Large Screwdriver for bar adjustment T27 Torx for all bolts on a Stihl chainsaw Small Screwdriver for fuel and bar oil adjustment 4mm Allen Wrench for work on Echo and Husqvarna saws Bar Cleaner scraper tool for cleaning your bar grooves 13mm (1/2”) Socket that will fit a bar nut on a half or full wrap handle Husqvarna saw 19mm Deep Socket that can be reversed with a 16mm Deep Socket for the spark plug on all saws and a bar nut on a Stihl saw. Additionally it can be used as a File Handle, there is a set of holes in the 13mm socket for a chainsaw file to be placed. Patent Pending: Designed By A Tree Surgeon