TEMCo Hammer Lug Crimper Tool 5 Year Warranty Manual Hammer Crimper recommend 2 to 4 lb sledgehammer. Also works well in a shop vise. Crimping Type: Indent. Terminal Type: Uninsulated. Wire Gauge 8 AWG, 6 AWG, 4 AWG, 2 AWG, 1 AWG, 0 AWG, 00 AWG, 000 AWG, 0000 AWG Ideal for Battery And Welding Cables. 5 Year Guarantee from a non-generic American name.