This Post may or may not surprise you as it is basically self explanatory if you are an avid wood cutter, but I will show you a simple way to size up you bars for Chain. As most of us know on the bar is stamped the size it is ect. But this is just a little trick I wanted to share with you here at FHC. Hope you enjoy reading it because it is very informative in my belief.(just my opinion). Remember I am a mechanical engineer so things like this are fascinating to me. To find a chain replacement, you'll need to also know the chain's "pitch" and "gauge."To determine the pitch (chain size), you'll need to measure the distance between any three consecutive rivets, then divide the result by 2. The rivets are the small, round pegs/studs that hold the chain segments together. Measure from the first to the third, then divide that number in half to get your chain pitch. Next to determine the Chain gauge which is equal to the width of the groove in your Chainsaw bar, you can use this simple trick. Find a quarter, a dime, and a penny. Use a bar groove cleaner or paper clip and clean your bar. Next slide each coin into the chainsaw bar groove. Determine which one fits into your bar groove snugly without forcing it. The Quarter = .063 Gauge The Penny=.058 Gauge The Dime = .050 Gauge. As I said at the beginning of this Post most bars are stamped with this information but I thought someone my like this trick. For example 1.3mm/=050 Gauge.Dolmar RM 3/8 72 Drrag links. Have a nice day... Stumper
