I have tried a bunch of different auto parts store feeler gauges in the past. They were always to long and never had the bend to fit. Then my Brother let me borrow these feeler gauges and I had to have them. They are a great tool for a great price
I know better but, I pushed the feeler gauge through the plastic bag it was shipped in. I broke the feeler gauge off. I should have cut bag open first. I should be thankful it did not break off and drop into engine.
The gauges work fine, but use caution. There is very little feeler gauge around the rivit holding the feeler onto the base. I had one break off inside the top end. Luckily it was on the opposite side of the cam chain. I fished around with a magnet and found the part that broke off.
If that piece broke off on the cam chain, fell into the bottom, it would have been a huge pain.
Cheap, buy a couple extras. The angle is perfect for getting blade parallel to surfaces for accurate adjustment. Get a size larger and smaller if you want to get really detailed about measuring before and after to track wear.