18-1/2 x 11/16 x 1/8 HSS Planer Blades - replacement for Woodmaster 718 - Set of 3. 18-1/2" x 11/16" x 1/8" planer blades set of 3 knives 18.50" planer blades for Woodmaster 718 18" planer/molder Xcalibur knives are made from Higher Grade of HSS for longer edge life compared to Regular Blades Specially designed with close tolerance for fast, smooth and effective planing We also make Planer Blades for Whitney, Oliver, SCMI, Porter, Powermatic, Northwood, Yates, Buss Master, Northfield, Crescent, Yates, Fay & Egan, Bridgewood, Newman, RBI, Parks, TTL, Sunhill, Northstate, Woodmaster.