Moore & Wright 4009R 225mm Engineer's Square Grade BThis Moore & Wright Engineer's Square is a Grade B precision tool designed for precise measurement and marking tasks. Suitable for engineers, machinists, and craftspeople, it provides accurate right-angle reference for various applications.Features Grade B accuracy Durable construction Designed for precise right-angle measurementSpecifications Brand: Moore & Wright MPN: 4009R EAN: 5051102247706 Blade Size: 273.1 × 38.1 mm Stock Size: 139.7 × 38.1 mm Inner Working: 107.9 × 234.95 mm