Project details (with free plan): https://ibuildit.ca/projects/wooden-vise/ The vise is made almost completely out of solid pine. The jaw pads and handle are maple. The jaws are 8" wide and the vise opens nearly 7" The lead screw is a leveling leg for a scaffold and is about 1-1/4" thick solid steel. I clear coated the finished vise with oil based polyurethane and bolted it down to my workbench with 3/8" lag bolts.