Ultrafine stones tighten the blade's scratch pattern to an even keener degree for hair-popping professional sharpness and polishing. Fits the 204MF Sharpmaker system, stones are sold individually.
204UF1 TriAngle stones are 7"x.5" (178 mm x 13 mm)
For cleaning: scrub with a scouring pad and powered abrasive cleaner, air-dry. Autoclave safe.