Ratchet Crimp Tool, Open Barrel Terminals 22 - 12 Gauge (1 Per Quantity) Tool crimps OEM (openbarrel) terminals in 22-12 gauge. Tool will not disengage until uniform crimp is completed or quick release lever is triggered. F crimping nests make rollover crimps on both stranding (electrical crimp) and insulation (strain relief). For crimping terminal part nos. 14601422 14601622 14621422 14621622.