6pcs Microcarving Knife 2.35mm Diameter Burs Tungsten Steel Engraving Cutter Olive Core Carving Cutter Engraving Machine Set
https://www.vogueparade.com/shopping/EN/1428/5/1005001808973083/6pcs-microcarving-knife-235mm-diameter-burs-tungsten-steel-engraving-cutter-olive-core-carving-cutter-engraving-machine-set//