ALVIN 505V Basic-Bow Combination Compass with Beam Bar, Ideal for Geometry and Engineering, Drawing and Architecture Tool - 6 Inch

ALVIN 505V Basic-Bow Combination Compass with Beam Bar, Ideal for Geometry and Engineering, Drawing and Architecture Tool - 6 Inch

• Easy to Use - This compass is exactly what an artists, student, crafter, or hobbyist needs. It can be used as a basic drafting or drawing instrument for both projects and artwork.
• Ideal for Students - Perfectly useful for all levels, whether for geometry class, drafting, architectural design, construction, or engineering.
• Multipurpose Tool - Exactly what you need for a number of projects including bisecting angles, constructing geometric shapes perpendicular lines, parallel lines, triangles, circles, geometrical shape.
• Extra Features – Includes a sharpener for sharpening the point of the lead so you can always create precise arcs and circles. Also includes a small container for lead, as well as interchangeable pen,
• Conveniently Packaged - Comes in a hard, see-through plastic case for portability and easy storage and transport.

Same as No. 505, but equipped with beam bar extension for circles up to 20 inches in diameter.