Purchasable with the intention of performing auto repairs on one's own. This closed-end wrench was a nice addition to my collection of open-end ones. Everything in the set, including the bits and heads, is still functioning perfectly after four years. I lubricated the ratchets, bought a 1/2-inch to 1/4-inch adapter, various 36- and 40-millimeter extensions, and a magnetic candle head. There is no room for them in the case, so they are both lying on the floor. There will be an individual short on 3/8 ratchet. At first, I didn't understand why anyone would need a hammer, pliers, a hacksaw, and screwdrivers all in one convenient package. This set was used to disassemble and reassemble nearly the entire vehicle.