6pc impact  screwdriver set

HOW IT WORKS: When you strike the top of the tool with a hammer, the drive tang is turned 20 degrees in the direction you have set the tool. 

You can use this driver with impact sockets and on nuts, bolts, and other fasteners.

Instant impact force loosens rusted or frozen screws without damaging them, so you can save yourself the hassle of having to drill and tap stubborn fasteners, whether you're working on a brake job or changing a rotor.