12 MSD provides a neat plastic tool that not only gives a guide for slicing the shielding from the wire core but also features a crimping feature when used with a vice. We will be doing a bunch of wires for multiple upcoming projects so we picked up the killer MSD Pro-Crimp Tool. Still, we employed the plastic tool because it has the guide for cutting the outer sleeve properly. The way the little plastic tool is made, all you have to do is slip in the wire, plunge in with a razor until it contacts the tool, and spin the wire. The tool puts the razor at the proper depth to cut the shielding without damaging the core.