Our largest continuous double-sided diamond bench stone surface accommodates a variety of tools and blades. The magnetic base offers knuckle clearance for sharpening tools and knives. With the MagnaBase™ System it is easy to secure, change and remove the bench stone from the magnetic base for quick grit changes during sharpening. Sharpening with diamonds is fast and easy - no messy oils needed - sharpen dry or with water. Durable construction will provide years of consistent performance and reliable service.For proper tool maintenance, woodworkers, chefs and other professionals rely on the superior quality and versatility of DMT® products. Stone measures 12" long and 3" wide. Made in USA.