The HORL 3 Pro Rolling Knife Sharpener combines six grinding angles with internal planetary gearing for highly controlled sharpening. Its angle support offers 10°, 13°, 15°, 20°, 22° and 25° settings, while the 1:3 gearing makes the grinding disc rotate three times for each turn of the sharpener. A standard diamond disc handles initial sharpening and a ceramic honing disc refines the edge. HORL Quick Lock allows the discs to be exchanged for compatible accessories.