Replacement blade for the Crain No. 338 Flex Undercut Saw. This flexible blade bends at the floor for hand undercutting wood door jambs. Both sides of the blade have a nine inch double row of staggered, ultra-fine induction hardened teeth that make for easier starts, fast cutting action, and smooth results. Includes one replacement blade only. No handle is included with this blade. Net weight: 4.5 oz.