POWERTEC 128180 12-1/2-Inch Replacement Planer Knives for JET 708813, Fit JWP-12DX, Set of 2 Replacement blades for JET 708813; Fit JET 12.5-Inch planer 708522 JWP-12-4P, JWP-12DX Made of High Speed Steel for longer cutting life Reversible knives have 2 cutting edges A set of two Plastic case packaging