Bench Dog 10-023 Trim-Loc Aluminum 1/4-Inch Easy-to-use device for measuring, marking, and installing casement trim Built-in tape measure hook slots and preset reveal for accuratel measurements Can be used as a handy combination square; perfect for miter saws Precise 45 and 90 degree guides for marking cut lines, square jambs, and true power tools 1/4-inch reveal; hangs easily on a belt