12" High Impact Plastic Mechanical Drafting Triangular Scale by Alvin 110 Series
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.