A Good Edge. norton sharpening stones at Cromwell. Since 1823, Norton has been the leading supplier of benchstones, files, slips, dressing sticks and rubbing bricks. A Long Lasting Edge. Our comprehensive line of sharpening and finishing stones … If you want to get a sharp working edge then just use a double sided Norton and job’s a good’un. These run of the mill tools have such soft steels that the best sharpening stone is without a doubt a double sided Norton oil stone. Cromwell is UK's leading tools and MRO supplier, featuring the widest range of products from all leading brands. Don’t fret about high grits, it’ll work. Norton Abrasives IM200 Home Tri-Stone Sharpening System Includes 8" Coarse Crystolon, Medium Crystolon and Fine India Stones, 4-1/2 Ounce Lubricating Oil, Plastic Angle Guide and Reservoir Unit 4.6 out of 5 stars 143 Buy norton sharpening stone and get the best deals at the lowest prices on eBay! Great Savings & Free Delivery / Collection on many items