RotoZip CT156 5/32-Inch Collet with Collet Nut, for use with XBITS Works on 5/32-Inch shank bits Rugged for all-day use on the jobsite Collet measures 5/32-inches Replacement collet for all RotoZip spiral saws Part of RotoZip's large line of replacement parts For use with 5/32-Inch RotoZip accessories Rugged for all day use on the jobsite Contains collet and collet nut