I recommend getting your hands on an impact wrench if you’re going to drive anything larger than those.įor this test, we see numbers up to 2,700 in-lbs for some of the heavy hitters. You can expect to drive anything up through timber screws and smaller lags. This tool can hit this mark with a comfortable margin and has no trouble driving a 1/4″ ledger screw and settles in at 9th place for this test.

We expect to see a Pro-level impact driver in this class hit at least 400 RPM. In our speed test, the Mac Tools Impact Driver maintains 448 RPM under load. Please realize that our torque tests do not and cannot replace how manufacturers test for their specifications. Head over to our main shootout page see the details. It’s an automotive brand, so that’s a form we’re used to seeing in that sector, but c’mon guys. What’s interesting in that Mac Tools doesn’t list their fastening torque like everyone else. It also generates a respectable 3,000 in-lbs of breakaway torque. On paper, the Mac Tools Impact Driver has a no-load speed of 2,800 RPM with 3,200 IPM. Head over to our Best Impact Driver main page for our testing method details. The two main areas we tested each impact driver are speed and torque.

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