Endorsed by Dynatek. Multifunctional tool. Crimps 7mm to 8.5mm spark plug cables, also crimps insulated and non-insulated 10 gauge to 22 wire gauge terminals. Includes a wire cutter and strips 22 gauge (0.33mm² / ø0.64mm) to 10 gauge (5.3mm² / ø2.6mm) wires.