This is Husqvarna's Roller File Guide Gauge, Combo Gauge 3/8" Std; replaces 505698112, 505698107
The Husqvarna Chain Filing Combo Gauge. Husqvarna's combination gauges are specially designed with a file gauge and depth gauge together in one tool. Can be used together with our round and flat files for a correct fling angle. Available for all Husqvarna chains. With a correct sharpened chain your work will be easier and safer. Exclusive design is easy to use and fits in your pocket. Fits Std 3/8" chains (H42, H45, H46, H47, H47S, H48, H48S, H51, H54, H80 and H81).