PVC soft grip handle and forged jaws. Spare jaws available: insulated – Part No. 2926, non-insulated – Part No. 2927. Ratchet motion assures complete crimping. 0.5 – 1.0 mm = 20 – 18 awg, 1.5 – 2.5 mm = 16 – 14 awg, 4 – 5 mm = 12 – 10 awg.