Spring tension gauge
The essential tool for proper machine adjustment!
Used to determine and adjust rear spring tension, this determines the setting of a machine (for example, if you need to change your springs and you know your ideal liner setting is 350g, you reset the same weight).
The graduation goes from 0 to 700 grams. It is used by placing the blade on the pin of the flyweight and pressing the handle, until the flyweight touches the spool. The scale gives the spring tension weight.
Made in the USA