• Crystolon – Premium silicon carbide abrasive for fast cutting stone; ideal for general sharpening of cutting tools; fast stock removal for quick edge shaping with minimal loading • Benchstones are ideal for hand dimensioning and sharpening of all types of knives, plane blades, chisels, scrapers, or any other tool that needs a flat, sharp edge • Arkansas – natural premium novaculite quarried in arkansas and available in soft and hard translucent for sharpest possible razor edges; Near mirror finishes; Use for finer honing after india stone • The use of oil with sharpening stones enhance the sharpening action and minimize the clogging of the stone’s surface • Norton Sharpening Stones have been the world leader for over 150 years