Snap-Off Circle Cutter by Olfa
Cuts uniform 2.8" to 12" diameter circles in materials such as plywood carpet leather corrugated cardboard mat board etc. Blade and center pin are easily adjustable for depth according to thickness of materials. Built-in blade snapper. Supplied with snap-off blades. Uses OR-LB6B OR-LB10B and OR-LB50B replacement blades.