With a 3+ inch thick top most clamp-on accessories won't work. But with the big face vise it's no problem to just clamp a piece of 8/4 stock to the front of the bench and Bob's your Uncle...you have a whole new edge to clamp to. Here I've set up for saw sharpening with the saw vise clamped to the rock-solid base provided by the four foot 8/4 hardwood piece locked in the face vise.
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