Durable Ratcheting Crimper for Non-insulated or Open Barrel Terminals 20-18, 16-14, or 12-10 AWGHeavy duty crimper for Non insulated or Open Barrel Terminals Crimps the following sizes gauges: 0. 5 to 1mm for 20 18 AWG 1. 5 to 2. 5mm for 16 14 AWG 4 to 6mm for 12 10 AWG Easy one hand to use ratcheting design, automatically opens once crimp is finished Applies the same amount of crimping force every time Heavy duty steel construction with comfortable rubberized grip handles This heavy duty crimper is suitable for Non insulated or Open Barrel