Speed Bow Introductory Compass w/ Beam Bar

6½" Speed Bow compass has smooth action rapid adjustment feature, durable cast zinc construction, black fiberglass crown and reinforcements. This compass is a durable and economical compass for introductory level drafting and drawing requirements.

• Double knee joints for parallel leg positioning and precise drawing of large radii
• Makes circles up to 12" diameter
• Comes in a clear top protective plastic case with spare lead
• Additional versatility of a beam bar extension for drawing circles up to 25" in diameter

Brand: Alvin