Staedtler Mars Comfort, Professional Drafting, Drawing Compass with Extension Arm, Draws Circles up to 19.5 Inch Diameter, Spring Bow Compass with Center Adjuster Wheel, 551 02

Key features

• When the pros need precision, they turn to Staedtler. This solid metal geometry compass is the circle drawing tool used by architects, engineers and artists alike
• Features a comfort grip on top and micro-step adjustment wheel to lock in the exact diameter you need. Draws circles up to 10.5" on its own, up to 19.5" with the extension lead
• Comes with two needle heads, spare leads. , extension arm and a sturdy plastic hinged case to hold everything
• The perfect woodworking , drawing compass, and math compass, Staedtler ensures quality and accuracy for every project
• A key component of any set of drafting tools, not to mention an artist's toolbox, student compass and all-around math aid