This Pinnacle® 6" Pocket Rule is made from an extruded aluminum profile, which features continuous grooves for handling and flatness, along with machined edges for straightness. The rule is black anodized for wear protection, with white laser engraving for visual contrast. The imperial side has 1/16" graduations, while the metric side has 1-mm graduations. The ruler includes a combination hook/slide stop for repeatable marking and measuring.