Hi, this is a 6"inch dial caliper.It is made by Rcbs.It has the following feature's: 0-6" range with 1" per revolution,thumb operated fine adustment roll, lock screws for sliding jaw and dial bezel, covered rack depth rod, knife edge contacts,adjustable bezel.This dial caliper is used, but in good condition.Any questions please ask,I will do my best to answer,as I do not know alot about these.Thank you for looking !!!!!!!!
