Whether you working on a boat, a trailer or are just a DIYer in general, having the right crimping tool and connections makes all the difference in the world. Lowes and Home Depot just don’t carry what I need. So far I have bought 2 types of kits and a crimper from Wirefy. Extremely happy with the quality. Hopefully the Heat Shrink Spade Connectors-Spade Terminal will be the last kit I need to buy for awhile, but I doubt it. Once you have the tools, the experience, and the confidence to tackle wiring problems, you just keep finding my projects to tackle.