The Barrel Bedding Junior has the same chatter free system as the standard Barrel Bedding Tool but with a quick change disk feature. The single handle tool is complete with pin, retainer and screw for changing and securing the cutter disks. Quick-change disk system includes 6 each of 1/2" disks, 5/8" disks and 3/4" disks. Also includes 15 rubber spacers, 5 for each size of disk. This is the single tool solution for multiple barrel diameters.