The quick connector on this product is really cool and probably works very well with wood or OSB but bad for precision work. I was trying to cut 0.5" thick Plexiglas and this thing just ripped the panel to pieces due to its hard fit (wobble) on the shaft. The cheap hardware store brand did a much better job of cutting in terms of fit. Three Stars for innovation factor and product quality, although the wobble was too strong for anything but wood.