Name: Koala Tools Ring Ruler 360
Brand: Koala Tools
Rating: 3 (4 reviews)

The Ring Ruler is the first size-adjustable, circular ruler. It has been designed to make the drawing and measuring of circles and arcs a much simpler and more efficient experience by eliminating the cumbersome pivot-point system. Not only is the natural feel of expanding and contracting a circular ruler more ergonomic than using a needle compass, it is also quicker, safer and provides more the useful circular metrics of diameter and circumference (arc length).




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Ring Ruler 360 - Circle Ruler showing arc length, diameter and degrees

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Ring Ruler 360 - Closeup of one end contracted, one expanded

The Ring Ruler is the first size-adjustable, circular ruler.  It has been designed to make the drawing and measuring of circles and arcs a much simpler and more efficient experience by eliminating the cumbersome pivot-point system. 

Koala Tools Ring Ruler 360 | Utrecht Art Supplies

Shop Koala Tools Ring Ruler 360 - Metric at Utrecht. Your source for quality, professional art supplies.

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Koala Tools Ring Ruler 360 - Metric - front of packaging

Koala Tools Ring Ruler 360 - Metric| Utrecht Art Supplies

Shop Koala Tools Ring Ruler 360 - Inches at Utrecht. Your source for quality, professional art supplies.

Koala Tools Ring Ruler 360

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