Description
Easy-to-use instrument combining the functions of a parallel straightedge, triangle protractor, T-square, and compass. One of the most useful and convenient aids for drafting, drawing, and nautical applications. Smooth gliding action makes parallel lines without twisting or turning under pressure.
- 25 cm (10″) rolling straightedge
- Draw parallel lines with ease and accuracy
- Draw circles up to 40 cm in diameter using holes at 1cm intervals
- Draw and measure angles using 1 degree increments
- Aluminum roller bar for smooth-gliding action
- Non-skid rubber rings for firm grip on any surface
- Durable acrylic blade with printed graduations
- Three sides with edges graduated in millimeters
