Ferrule Crimping Tool Kit: 400pcs Wire End Terminals and Crimping Pliers 23-7AWG. The Crimping Area is 0.25-10 mm². Suitable for Screw Terminal Projects, Equipment Switches, Relay Power Supplies, Car Audio, Lamps, Speaker Wiring, etc., Especially Suitable for Industrial Electricians and Wiring Enthusiasts High Quality: The Metal Part of this Wire Terminal is Made of Thickened Brass, Which has Good Conductivity, and the Surface Adopts Advanced Tin Plating Process, Which can Improve the Anti-Oxidation Performance and Longer the Service Life Ferrule Crimping Tool: Comes with Self-Adjusting Design Which Equipped with a Self-Adjusting Ratchet, the Crimping Pliers Can Adjust to the Appropriate Wire Stripping Diameter Automatically, Help Improving the Crimping Accuracy and Reliability and Avoiding Terminal Waste 400pcs Wire End Terminals: Different Specifications are Matched with Different Colored Rings, and Each Specification of Sleeve is Placed in a Small Grid, Which is Organized and Orderly. Very Convenient to Distinguish, Help You Distinguish Quickly and Improve Work Efficiency Good Choice: Ferrule Crimping Tool Kit Ideal for Crimping Insulated and Non-Insulated Wire Ferrules. Professional Wire Crimping Tool Could Help You Complete the Wiring Quickly , Suitable for all Kinds of Equipment Switches, Batteries, Cars and Household, Electronic Components with Pins etc., Weight: 0.125 pounds, Manufacturer: AEDIKO