The Aligner Guided Diamond Sharpener ensures guided strokes and exact bevels to give a consistent angle and produce the ultimate in fast, accurate knife sharpening. The most flexible guided sharpening system available has 7 angle variability and the handle accepts any 4" (110 mm) DMT® Diamond Whetstone. The knife clamp can be used separately as a sharpening guide with any bench model DMT® Diamond Whetstone. Included is a fabric storage pouch with velcro enclosure.