Many automotive tools are similar, if not identical, to household and home improvement tools. Others, however, are specifically designed to perform one or more functions on autos only. This holds true for some home improvement tools which, while perfect for construction use, are almost totally useless in your auto tool box collection.
Those that are similar or identical to household tools include open- and box-end wrenches (although you can purchase some made for auto repair that have a smaller effective turning radius), socket wrenches, adjustable (Crescent) wrenches, screwdrivers and ratchet-handle drivers (which accept a multitude of bits), hacksaws, some circuit testers, slip-joint and needle nose pliers, wire stripping and crimping tools, and rubber mallets to name a group.
A group of popular auto tools that have little purpose in your home tool kit include car audio tools, digital on-board diagnostic scanners, spark plug sockets, oil filter wrenches, booster cables, torque wrenches (although they could be used in the home), some tune up tools, siphon hoses, and the majority of auto body shop tools.
The good news is that many of your home improvement tools will work perfectly in your auto tool kit also. If you duplicate many of your household tools in your car tool kit, you’ll have some home improvement tool backup. Should you wish to be very frugal, you can give some of your home improvement tools double duty status.