Alvin 110P 110 Series 12 inch High Impact Plastic Architect Triangular Scale[Product Information]- Enter your model numberto make sure this fits.
- 12" triangular scale - ideal for scholastic and vocational use.
- Architect，engineer and mechanical draftsmen graduations.
- Sharp easy-to-read graduations resist wear.
- English and metric.
- All architect scales have the following graduations unless otherwise.noted: 3/32， 3/16，1/8，1/4，1/2，1，3/8，3/4，1½; 3” to the foot; one edge to 16ths.
