Pressmaster krb 0560 crimp tool pressmaster 4300 3691 p the pressmaster krb 0560 is a precision ratchet crimp tool designed to provide consistent and reliable crimp connections on uninsulated open barrel connectors on wires ranging from 0 5 6 0 mm sup2 p p it couldn t be simpler open the tool and insert a terminal in the correct nest then close the tool until the terminal is fastened insert wire into the terminal and close the tool until ratchet release to release the ratchet mechani