Alvin Scale Mech Drafting 12" Triangular

These 12" triangular scales are ideal for scholastic and vocational use. Satin finish, high-impact plastic with tapered edges. Sharp, easy-to-read graduations resist wear. Available in white or eye-saver yellow. Architect, engineer, and mechanical draftsmen graduations. English and metric. Items 110PC and 111PC are blister-carded.