CRIMPING TOOL - Original Bead Crimper for beads from 2 to 3 mm which works with either tube crimps or round crimps. We recommend that you use round (spherical) crimps if the crimp is going to be hidden as they hold better than tube crimps. Tube crimps are more attractive when they are to be seen. For best results only high quality crimps should be used. Length: 5" (125mm).