This is the 3/8" size, which will cut potatoes into 3/8" thickness.
This french fry cutter is a heavy-duty cast iron body, handle & a stainless steel reciprocating rod. The frame, cutter & pusher block are all rust proof. It can be wall or table mounted. Durable and easy to clean. Cutter size & shapes available in ¼", 3/8", 1/2", 6 cut & 8 cut wedges. Replacement blades are available.