Orange EDM series stones are made of aluminum oxide and were originally intended for the treatment of metal after the electric spark machining (EDM)

The thickness of wood is approximately 3 mm

please keep in mind the Universal Stone Holder cannot eliminate fundamental constraints of the knife sharpener

P3 mode is demanding but rewarding

glass blank for edge pro new Orange EDM series stones areGlass blanks are used with lapping films for ultra fine sharpening on guided sharpening system. The glass bar is attached to a high quality aluminum blank. Glass is available in three tones (colors). PSA backed (pressure sensitive adhesive) lapping film is extremely easy to use. Simply peel off the paper backing and press it down on the blank. Avoid getting air bubbles between the film and the blank.