Precision Copper Ruler 15cm Thick

This 150 mm copper ruler features a robust 1.5 mm thickness and uniform 17 mm width, resulting in a dense, well-balanced tool weighing approximately 38 g. Made from solid copper, it avoids the inconsistencies of layered or plated metals — delivering reliable performance across diverse surfaces including tracing paper, Bristol board, and drafting film. The scale is precisely marked from 0 to 150 mm using permanent etching, ensuring clarity and longevity. Its dimensions and material choice reflect deliberate design for users who prioritise tactile feedback, long-term durability, and uncompromised line fidelity in manual drafting processes.