Staedtler Mars Drafting Head for 661 A3 Drawing Board

Description

Drafting Arms designed for use with the DIN A3 drawing board 661 A3, enabling precise and uninterrupted drawing of right angles.

• Compatible with drawing board 661 A3
• Single-handed operation
• Stop/Go push-button for easy angle setting and freewheeling
• Two transparent ruler arms with double-sided, opposite-running scales
• Parallel guide lines serve as a hatching aid
• Opposite-running protractor scales from 0 to 90 with additional marks at 7 and 42 for dimetric projection
• Automatic settings at 15 intervals
• Drawing angles can be set at 1 intervals for precise results
• Facilitates uninterrupted drawing of right angles