Specification: Color: Red&Blue Material: Cr-V steel (oil quenching treatment) Size: 175mm*80mm Feature: Professional Crimping Tools - Ferrule wire crimping tools feature efficient ratcheting mechanisms, professional grade crimping dies and ergonomically comfortable handles. This power tool is suitable for ferrules in the range AWG 23 - AWG 7 (0.25-10 mm2). Wire Connector Crimping Tools for Terminals, Automotive, Batteries, Home and more. Portable Crimp Tool Kit - Power Tool Kit also comes with a 1250 Piece Wire Terminal Kit. Ferrule connectors are made of copper and polypropylene. Whether you're an electrician working with PLCs or a hobbyist working with relay ules, you'll find this ferrule crimp kit handy. Adjustable Ratchet Design - Ratchet crimp kit for precise and repeatable crimping, ferrule kit to prevent over-crimping, crimp tool kit with adjustable compression wheel and square ratchet mechanism to reduce hand and elbow stress automatically adjust at the same time. Precise Ratcheting Mechanism - Crimp wire connectors by squeezing the handle throughout the ratcheting cycle until the handle automatically releases. The ratchet function allows the wire connector to be secured when the wire is inserted into the crimp. VERSATILITY & DURABILITY - Cord Hoop Kits are great for DIY projects and solderless repairs around the house.