from Harbor Freight - 45mm round blades - used in the handle for carpet layers to cut carpet but fit into a rotary cutter. I have an Olfa and it fits, and I think they fit in Fiskars too. 2 in a pack $1.99. Sometimes blades are not as sharp as other batches but can't beat the price.
Last edited by paintmejudy; 07-21-2017 at 03:25 PM.