What is the best Raker Gauge Tool to use

A progressive raker depth gauge is far superior to the flat type constant gauge. A Progressive rager gauge tool will keep the attack angle around 5.4° to the witness mark. When using a progressive depth gauge tool, you will get 100% cutting efficiency even at the end of the life of the chain. These progressive depth gauges are made by Stihl, Husqvarna and West Cost Saws in America. This type of tool was invented by Ray Carlton and patented in 1965 LINK TO WEST COST SAWS AMERICA https://westcoastsaw.com/collections/...