Another one with no guesses???????????? OK then.... it is a blade stabilizer for a circular saw. AL about 3" around 5/8" shaft, one part on each side of the blade to dampen vibration and support the blade better.
For those of you who think those crazy zigy-zagy/twisty designs that are cut in to circular saw blades are designs..... nope..... Here is a fun thing to do if you have a blade without and one with the feature. Take the non feature blade and slip in on a dowel, how tap it with another dowel..... here the ring and how long it goes????? Now take the featured blade and do the same thing.... good trick hey?aniceone2hold said:I believe you are Ed. I'm so glad they figured out how to do the laser cuts in the blades to reduce vibration and noise.