The Helix Angle & Circle Maker is a protractor and compass in one. The clear center disc rotates freely, allowing for drawing of angles like a protractor and circles like a compass. It features slots for drawing angles up to 360 and holes for drawing circles from 1/8 to 4 in diameter. Overall diameter is 6.
LEEaccessory Circle Drawing Tool Helix Angle and Circle Maker
Helix Angle and Circle Maker (36002), 2 Packs : : Home
Helix Angle and Circle Maker
Helix. Angle & circle maker
Helix Angle and Circle Maker
Helix Angle and Circle Maker (36002), 2 Packs : : Office Products
Helix Angle and Circle Maker
Helix Angle and Circle Maker (36002) : : Office Products
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Helix Angle/Circle Maker (Protractor/Compass), Hobbies & Toys