All Chef's Choice® sharpeners use 100% diamond abrasives. Diamonds are the hardest known material and will sharpen any knife regardless of alloy. Diamonds are tough and durable and will never detemper an edge.
·Sharpens faster than natural stones
·Will sharpen all knives and materials
·Exceptionally flat steel support plate
·Precision hardwood base and cover
·Stone measures: 2" x 4"
·Base measures: 5" x 2-1/2" x 1-1/4"