Mar 08, 2015 · diy marble slab tables ????Jared Woodworking. I wasted $200 on a multitool bench grinder adapter to a belt grinder for knife making. It was hard to use even with jigs. You buy cheap you buy it twice. This one is heavy duty and rock solid. Belt runs at a high speed, the work rest is solid and stable. Easy to square to the platen.