High quality professional grade compass/divider for design work, math, geometry, art, drafting drawing and more

Precision designed with spring bow fulcrum, and fine threaded rod and center wheel to create near perfect circles up to 10 inches (250mm) in diameter

Knurled thumbwheel with fine threads provides exact sizing and resists movement to help ensure accuracy

All steel construction with nickel plated finish, chrome plated needle point, and knurled aluminum handle

Includes spare screws and 3 replacement pencil tips