Ideal for educators, woodworking enthusiasts, workshops, classrooms, and mechanical engineers who need corner calculations in construction sites Designed to function as both a corner finder and a ruler, it has metric scale numbers for seamless drafting and actual application Ideal for cabinet installation, engineering and shape demonstration with compact portability and industrial strength measurement T-shaped metric scale combines a 180° protractor with a 300mm ruler and features a durable anodized surface for scratch resistant durability and increased user safety Designed with high precision light marking and permanent aluminum alloy construction, this adjustable protractor provides ±0.1° accuracy for corner measurement and layout work, Manufacturer: Pffiocix