It's hard to find these cutters in even basic shapes but this are perfect - you get a selection of sizes, and they don't mark the clay! They are also very well made and I can see them lasting a long time.
English-made high quality cutters for metal clay, polymer clay and sugar craft.
Made from tin plate which are bonded using a non-toxic solder. The solder is kept to one side of the cutter, one side is completely smooth, meaning it won't leave marks in your clay when you cut it.
Set of 6 triangles.
Sizes (approximate, measured across the largest area): Largest 31mm down to smallest 10mm.