These ModelCraft saw blades fit perfectly in the ModelCraft No. 2 knife handle and the Modelcraft 8 piece saw set. They are compatible with the No. 2 and No. 5 plastic handles from other manufacturers. These 80mm long blades have a 63mm tooth length with 16tpi. Fitted into the knife handle you can make detailed, delicate cuts in wood, plastic or foam, The narrow tapering profile allows work in tight areas.