Olfa Compass Circle Cutter CMP-1 – ARCH Art Supplies
Amazon.com: OLFA Compass Circle Cutter (CMP-1) - Adjustable Compass Style Rotary Circle Cutter w/ 6 Blades for Cutting Circles Up to 6 Inches in Diameter, Replacement Blades: OLFA COB-1 Blades, Original Version :
Olfa Standard-duty Circle Cutter | MisterArt.com
Olfa RTY-1/G Rotary Cutter 28mm, Model 9551 OlfaProducts.com