I bought these vise screws to add aclamping function to a dovetail marking out and cutting stand. I adapted the stand quite easily by adding a support block for the screws and a clamp jaw. I made the support block about 120 mm thick so the screws didn't stick out so far. A 20mm Star-M F-Type Bit, SKU 394336, in a drill press produced perfect holes for the screws. My only complaint is the sharp edges left on the free end screw threads. These were easily removed with a file but that shouldn't have been necessary.