Industrial Grades Metal Ruler Round and Square Hole Pattern 0.5mm Accurate Marking Tool Laboratory Workshop Use

Accurate engineered stainless steel ruler with double hole design ensures accurate measurements under 0.5mm error, perfect for engineers and designers requiring reliable calibration tool. Crafted from corrosion resistant stainless steel, this 2mm thick ruler features round and square holes for multifunctional marking, hanging, or securing in professional workflows. Ideal for marine engineers, architects, and laboratory technicians who demand sturdy, rusts proof measuring instrument in humid or demanding environment. Industrial Grades Metal Ruler Round and Square Hole Pattern 0.5mm Accurate Marking Tool Laboratory Workshop Use. Features: Accurate engineered stainless steel ruler with double hole design ensures accurate measurements under 0.5mm error, perfect for engineers and designers requiring reliable calibration tool. Crafted from corrosion resistant stainless steel, this 2mm thick ruler features round and square holes for multifunctional marking, hanging, or securing in professiona