Ultra Sharp Diamond Sharpening Stones are the best value we've ever seen! These diamond sharpening stones work faster than any other stones and will sharpen anything with a cutting edge including ceramic, stainless steel and high carbon knives. We're so confident in the Ultra Sharp stones that we back them with our No Questions Asked 100% Lifetime Guarantee. Simply return the stone and we'll replace it or issue a full refund whichever you prefer. • Sharpens 8X Faster • Unequaled Durability • Precision Flatness Guaranteed • An Exceptional Value
Ultra Sharp Diamond Sharpeners cut faster than any other diamond stone we've tested. We have Ultra Sharp stones available in single grit and three types of combination stones. Orders are shipped within 1 business day with 2-3 day standard delivery within the USA (including AK and HI).