Helix Circle Ruler

Helix is a registered trademark.

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12" Circle Ruler
12" Circle Ruler

This 2-in-1 ruler and compass lets you draw circles from 1" to 12". Place the center disk hole on your starting point and choose your desired circle size (in 1/8" increments). Insert the pen into the hole and then hold down the center disk. Sweep around with the pen in the hole u...

Item #: 55740-1012
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