House framers installing decking or subflooring all have a pair of kneepads—unless they’ve switched over to this Quik Drive system, which allows them to drive floor-level screws from standing height. Developed by Simpson Strong-Tie for use with their collated fasteners, the system consists of three parts: A DeWalt cordless driver, the extension barrel, and the subfloor attachment.
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In this demo, you’ll see the design of the tool is quite clever, and it certainly appears faster and easier to use than getting down on your knees:
Hitachi—sorry, Metabo—makes a competing product, but I couldn’t find a good demo video of it.
Source: core77