POWERTEC 128306 3-1/4 HSS Planer Blades for Makita D16966 N1900B 1902X7, Set of 2 Replacement blades for D16966. Fits Makita 3-1/4-Inch planer N1900B, 1902X7 Made of High Speed Steel for longer cutting life Reversible knives have 2 cutting edges A set of two Calmshell packaging