The adjustable ratchet mechanism releases only after the correct crimp force has been applied to ensure a reliable connection. Ergonomic handle designed for comfort. Suitable for AWG cable sizes 10, 12, 14, 16, 18, 20. Supplied in a storage case with six sets of interchangeable jaws. Features & Benefits:The adjustable ratchet mechanism releases only after the correct crimp force has been applied to ensure a reliable connection.Ergonomic handle designed for comfort.Suitable for AWG cable sizes 10, 12, 14, 16, 18, 20.Supplied in a storage case with six sets of interchangeable jaws.Model No. AK3870 Specifications: Model No AK3870 Brand: Sealey Nett Weight: 0.770kg Terminal Suitability: Jaws: K1; 14-12 AWG for Size 12 (DTP), K2; 12-10 AWG for Size 12 (DTP), K3; 18-14 AWG for Size 16 (DT), K4; 20-16 AWG for Size 16 (DT), K5; 20-16 AWG for Size 20 (DTM), K6; 16-12 AWG for Size 16 (DT)