Unique design for cutting wax, plastic, rubber, shell, plaster and more. Teeth spiral up the blade to permit cutting in all directions. Made in Germany.
Size 4/0. I also have the 2/0 – please ask to substitute for the 4/0.
NOTE – I use these for cutting acrylic dies for use in the form box for making puffy shapes in the hydraulic press. A regular flat blade will melt the acrylic through friction as you saw. The spiral wax blade eliminates that friction.