Woodpeckers 12-In. Woodworking Rule sits flat for precise measurements with an accuracy within .004 inches. Crafted from durable anodized aluminum, it features beveled edges to minimize parallax error, ensuring reliable and accurate readings. The scales are laser engraved with the zero mark positioned at the center for convenience. This woodworking rule also includes threaded holes at both ends, allowing easy mounting of accessories. Proudly made in the USA, it combines quality craftsmanship with practical design for all your woodworking needs. Model Number: WWR12