The Lansky S1000 Ultra Fine Hone Spare Sharpener is a valuable accessory for any sharpening setup, particularly those using Lansky Sharpening Systems. This hone is designed to help you achieve a factory-style finish on an already sharpened blade. Its ultra-fine 1000 grit ceramic polishing surface allows for a fine, finished edge on straight-edge blades. The ergonomic plastic housing provides a comfortable grip, while the brass threaded insert secures the stainless steel thumb screw in place. Fast shipping ensures that you can get started with sharpening right away. This hone is made in the USA and comes with a limited one-year manufacturer's warranty against defects in materials and workmanship.Product Features and Specifications: Grit: 1000 Material: Ceramic Insert Material: Brass Thumb Screw Material: Stainless Steel Housing Material: Plastic Country of Origin: USA Warranty: One-year manufacturer's warranty