Rolfes Drawing Head
For use with the Academy and Vector drawing boards.
Single-handed use.
Two transparent ruler arms with double-sided opposite-running scales
Runs on both the upper and lower edge of the straightedge.
Free running mechanism. No lock position on straightedge.
Parallel guide lines serve as hatching aid
Protractor scales from 0°-90° with additional marks at 7° and 42° for diametric projection
Automatic ratchet settings at 15° intervals. No angle lock of other angles.
What's in the box
1 x Drawing head
