AM-K 220 grit is in great demand for the rough sharpening of knives and is included in all Boride stone bundles

Movable Clamps - allow you to custom place the clamps to hold any knife

LE Series Base improves the sharpening experience by eliminating any wobble between the sharpener and the base

Articulating arm

⛔Spring-Assisted Stopper

poltava premium metallic cbn stone 4 x 1 Grit:5000 AM-K 220 grit is inMetallic CBN Sharpening Stones from Poltava Diamond Tools are now available in 4" x 1" form factor for sharpening knives using small guided knife sharpeners such as KME. CBN (Cubic Boron Nitride) is the second hardest material after diamond. Metal bonded CBN stones utilize copper tin alloy bonding for high endurance and low wearing rate. The Premium series of Metallic CBN consists of a 3 mm thick CBN bearing metal plate mounted on a high quality