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Triman 360 Circle Protractor, set of 10

$28.95
  • Availability: In stock
  • Item #: 572024EM
  • Grades: 4-9
Use this 5" diameter, full-circle protractor to accurately draw the angle of an arc. The transparent protractor includes single-degree calibration, as well as four holes of differing diameters for drawing circles with 10mm, 15mm, 20mm, or 25mm radiuses. Also includes holes for marking reference points every 90 degrees, as well as seven pinholes to trace circles with radii ranging from 15mm to 45mm, using the spin disc in the center of the protractor.

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