Published at Friday, 24 August 2018. Impact Driver. By Elvia Merritt.
The first time I picked up an impact driver, a 12-volt Makita, I thought it looked, to me, like a toy. I then tried it out by driving a 3-inch deck screw into a 4" x 4" piece of fir. I was amazed as I watched (and felt) the tiny machine effortlessly drive the screw home, sinking the head below the surface of the wood. I had to remember to keep a lot of hand pressure against the tool so that the screw driver bit did not pop out of the screw head and strip it. From that moment forward, I have never been without one of these amazing machines at my side.
Impact drivers pack a lot more punch than screwdrivers. Using a motor or compressed air, it's able to generate a lot faster spin and a repeating "punch" that other tools can't duplicate. If you're slightly confused about the spin and punch, think about it this way. You're driving a screw into a board with a screwdriver. In comes your partner with a rubber mallet. Every few seconds, your partner slams the back of your tool. That impact increases the driving force of the tool considerable. Not only is the tool spinning and driving the screw with more torque, the constant pounding ensures the screw will make it through the material.
In conclusion, cordless screwdrivers are great for small, DIY projects. However, if you're working on larger projects requiring a bit more force and power, an impact driver is the way to go.
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