Scale Rule Oval - 91912

A practical and easy to use hand scale ruler designed for accurate measurement and drawing. This 300mm ruler includes multiple scale ratios 1:1, 1:20, 1:25, 1:50, 1:100, 1:200, 1:250, 1:500 making it ideal for students, architects, and technical drawing tasks.

• Ratios: 1:1, 1:20, 1:25, 1:50, 1:100, 1:200, 1:250, 1:500
• Ruler Length: 300mm