Description
DESCRIPTION:
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.
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