.cs278D5EC{12pt;font-weight:normal;color:#000000;font-style:normal;margin:0pt 0pt 10pt 0pt;text-align:left;line-height:1.15;list-style-type:disc;Arial} .cs6DB83BB{11pt;font-weight:normal;color:#000000;font-style:normal;Arial;} .cs807CDDB{11pt;font-weight:normal;color:#000000;font-style:normal;Arial;} .csB163A0C{11pt;font-weight:normal;color:#000000;font-style:normal;margin:0pt 0pt 10pt 0pt;text-align:left;line-height:1.15;list-style-type:disc;Arial} Use the Lee Cutter and Lock Stud with the Case Length Gauge & Shell Holder to trim cases. Can be used by hand or with an electric drill. Works on all brass less than .475 base diameter . If you are looking for trimming cases with a base diameter larger than .475, order the large cutter and lock stud.