Accessory 6 ½” diamond blade for the Crain No. 812 Super Saw, No. 820 Heavy-Duty Undercut Saw, or No. 825 Heavy Duty Undercut Saw. This dry-cutting segmented diamond blade is abrasive cutting and provides superior blade life undercutting masonry, ceramic tile, or stone. Not for use on any metal or wood materials. Net weight: 10 oz.