The DMT 10" DuoSharp Diamond Kit is the ultimate sharpening kit for precision and versatility. Featuring the largest DMT DuoSharp Diamond Stones, these 10" x 4" stones provide faster sharpening and the ability to tackle large items with ease. It's a complete package with two double-sided diamond stones in Coarse/Extra Coarse and Extra Fine/Fine grits, along with a versatile DMT sharpening base.