The POWERTEC Miter Saw Stand Brackets have easy-release attachment clamps that allow for fast attachment and detachment of tool. They also allow a variety of tools to mount onto most miter saw stand brands. The POWERTEC MT4000MBA Miter Saw Stand Mounting Brackets fit miter saw stand frames made from 1-1/2” steel tubing with an overall width of 7”. The brackets can be adjusted approximately +, - ½” . Compatible with: some models of Ryobi, Black and Decker, Craftsman, Kobalt, POWERTEC MT4000 Miter Saw Stand, and other similarly sized popular brands of miter saws stands. Please note: adapter boards may be needed for larger miter saw. See listing for actual sizes.