Product:HS-30J Rratchet crimping tool plier for insulated terminals-bullets/butt ring/fork/piggyback/spade crimp. Material:This product is made of high-quality industrial-grade high-strength carbon steel, which has high hardness and durability, and has the characteristics of anti-oxidation, anti-corrosion and anti-rust. Instruction:Toothed wire clamps are designed for terminals with 22-16 AWG, 16-14 AWG,12-10AWG wire gauges to fix and stabilize wires. Application:It can be used for household appliance repair, circuit repair, circuit connection of vehicles and ships, and all aspects of circuit connection. Function:The handle is made of soft rubber and designed in ergonomic lever structure, which can increase friction and help you use less effort when crimping.