The “Chatter Stop” is a helpful tool for those that have built the “Rounding Jig” for building footed arrows. The “Rounding jig” instructions can be found in either the “Building The Footed Arrow” DVD or the PDF Drawings on disc., both of which can be found elsewhere on this site. If your interested in how this tool works, please click on the Youtube link below to see it illustrated. For those that have the “Scorpion Tool” your collets will fit this tool. For this reason you will find two options for the “Chatter Stop” One option is with the set of 3 collets and another option without the collets.