F 400 to F 1500 utilize OCB binder

The storage is compatible with 6" mounted or unmounted sharpening stones or strops

while Gritomatic offers 5 grits only

Abrasive: Synthetic diamonds in a resin bond

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hapstone r2 black knife sharpener new F 400 to F 1500Hapstone R2 Knife Sharpener is the new knife sharpener from Hapstone, supplier of successful Hapstone R1. Hapstone R2, on par with Hapstone V8 and Hapstone M3, is part of the Hapstone Modular Platform, an innovative technology that lets customers configure and upgrade the sharpening system with no limitations. Hapstone R2 is kitted with the cutting edge rotating clamp module and delivers the ultimate combination of high precision, rich features, and