The OX Tuff Rule is a rigid, versatile, and compact metric folding rule and quick angle finder with a practical purpose for everyday construction. Built for precision and longevity, the Tuff Folding Rule is useful for working in confined, angled spaces and for making difficult-to-reach measurements. Constructed from tough engineered ABS plastic, and fit with premium brass hinges and pins for smooth operation. This rule’s compact foldable ergonomic design is easy to use and store in tool pockets. Length 600mm - This is the standard stud wall spacing + floor joist spacing Width 45mm – Common framing timber 90mm x 45mm Reinforced hinge and ABS plastic for extra durability Centre-line feature for measuring offset lines or splitting centers Central Swivel Hinge = Easy angle finder 0-180°