Alvin 244P 12" Mechanical Drafting Scale made of Hi Impact Plastic

244P Mechanical Drafting Scale 12" Hi Impact Plastic - A professional quality scale made of high-impact plastic with white non-reflectiving dull matte faces and tapered edges. The calibrations are machine engraved and the furrows color coded. Supplied in hard plastic case.

Graduations: 1/8, ¼, ½, to the foot; ¼, 3/8, ½, ¾ size; 50ths and 60ths