FLATWORKING READY: Make flat work easy. Our award-winning, patented swing fence rotates 90 or 180 degrees for precise flat work. Ideal for carpenters, metal workers, and floor workers. Ergonomic, versatile, and suitable for left-handed users. Opens up new possibilities and simplifies your tasks. AIRLINE ALUMINUM: Durable 0.25" anodized T6 extruded aluminum. No cast aluminum used. Premium CNC milled and hand-assembled construction tool. Built for lasting performance. QUICK REPEAT MARKING: Turn your rafter square into a jig with our exclusive jig block and thumb screws. Set the jig to any mark and lock it in place. Enables reliable, repeatable marking and cutting to save time and effort on the job site. Built-in level vial provides three readings at once: horizontal, vertical, and 45 degrees. Quickly check alignment on headers. Manual verification supported. Eliminates the need for a separate torpedo level. HIGH CONTRAST MARKINGS: High visibility, sharp, precision-etched markings. Clear and accurate for fast layout work. Fully marked fences for improved efficiency.