The Woodpeckers woodworking ruler is your faithful companion and assistant in all phases of your woodworking endeavors. Easy to use, it has an engraving tolerance of ±0.004” total accumulated error. The joiner's ruler features two sets of laser-engraved scales: one side has a standard L2R scale and the other side has a centering scale. The 30° beveled edge is specially designed to bring the scale closer to the work surface, avoiding parallax error. Made of aircraft aluminum and anodized for surface protection. White laser scales have excellent visibility and readability against a red background. The fixture is equipped with finger grooves in the middle of the body, and the back has a raised section for easy positioning of the ruler in the desired location.