I have 6 handscrews and use them often, mostly for gluing rings of blocks for segmented turnings, in this case banjo rims. I also use them to clamp a neck blank by the sides of the heel, and then use a c clamp to hold the handscrew down to the workbench to rout the truss rod slot. I use a piece of straight board as a fence by putting it in the woodworker's vise, and then the necks just have to be secured with the centerline of the cut 3" away from the fence. I had some all wood handscrews but have worn them all out, eventually the wooden threads began to crumble. Of course they weren't new when I got them, so that may have contributed.