Benchdog Pro-cut? Portable Saw Guide 210mm (8-1/4") Helps achieve perfect 90? circular saw cuts Built-in guides square Pro-Cut to the workpiece while 2 rubber strips prevent side-to-side movement Instantly aligns saw to the cut line whilst reducing dangerous kickback, binding and bent blades Ideal for cutting timber, wood cladding, I-beams, trim, stair treads etc 6" hook rule and 45?/90? layout square