Discover the Faithfull Prestige Tri-Scale Engineer Rule, a precision measurement tool designed for engineers, architects, and DIY enthusiasts alike. This robust 300mm ruler features six easily identifiable scales, thanks to its vibrant colour-coded inserts, making it an essential tool for converting ratios during detailed drawings and designs. Its unique triangular profile not only enhances grip but also ensures safety by keeping fingers away from blades while cutting or scoring materials. Crafted from high-quality aluminium with advanced CNC machining, this heavy-duty engineer rule boasts a sleek black anodised finish that provides superior corrosion resistance. The laser-engraved scales guarantee exceptional measurement accuracy, making your projects more reliable and efficient. Manufactured to the highest standards and backed by a 10-year guarantee, the Faithfull Prestige Tri-Scale Engineer Rule is a must-have for anyone seeking precision in their work. Specifications include a length of 300mm (12 inches) and scales of 1:5, 1:10, 1:50, 1:100, 1:200, and 1:500.