What is an Impact Driver?

This is the perfect tool if you are going to drive a lot of screws, say build a deck or drywall a room. An impact driver will greatly speed up a large construction project. But they are not for everyone. There is a lot of confusion over the new impact drivers. These cordless tools are not for removing nuts and bolts, but a tool for speeding up your home remodeling and construction projects.

Basically they are high speed screwdrivers or drill/drivers that give the screw a little “tap” as it is being set. They allow you to quickly and easily screw in even the longest screw.

The cordless impact wrench has rapidly in popularity among professional mechanics and the hobby mechanic as well. As you can imagine, "I already have a cordless drill, I use for impact applications, why do I need a cordless impact wrench, too?". I thought the same thing. The first difference is on the inside. A cordless drill creates continuous in-line torque. A cordless impact driver uses an internal spring-loaded pulsating cam to create rotational torque. This createsthe "impact" force that replaces a mother. It is the equivalent to a wrench with a hammer to beat a rusty nut only be solved much faster. Unlike a cordless drill - which creates continuous in-line torque, a cordless impact driver uses an internal spring-loaded pulsating cam and gear, a rotating torque, or the "effects to create" to force.