Wrenches perform the same function as ratchets and sockets — tightening and loosening fasteners — but there are differences and situations call for one over the other. For example, a box-end wrench is a good option for loosening stuck fasteners because you can apply more torque without risking damage to a ratchet mechanism.
Socket Bits. A socket bit is a hex socket with some kind of bit inside it. These bits are frequently screwdriver bits, though they also come in many less common types. Like other sockets, they have a square ratchet end where they attach to the ratchet tool. They frequently come in sets, and can be made to work with impact drivers as well as manual tools.
What is an impact socket? Shop for Sockets : Impact sockets are designed for use with powered impact wrenches or 'drivers', as they are sometimes called. Impact wrenches can be powered pneumatically (by compressed air), electrically, or hydraulically (oil).
Pass through sockets are amazing but this set in particular is even better, this set does not skip sizes and goes up to 27 mm and 1 1/16 inch. Comes with 2 3inch pass through extensions. And has adapters to turn these pass through ratchets into normal ratchets for normal sockets.
The CRAFTSMAN 4 pc 3/8" Drive Spark Plug Socket is high quality and versatile. While you can spend less money for spark plugs in this size range, you don't want to skimp on quality just to save a few bucks. From servicing lawn mowers to weed whackers to vehicles, this spark plug set covers all of your bases. Once you have these tools in your supply box, you'll find yourself using them so frequently that you won't know what you did without them.