Chipper knife (KN1) for Garden Master shredder chipper

 Chipper knife for all Garden Master models.  One fitted to 5-hp models, two to 9-hp.  Complete with two bolts, two flat washers and  two spring washers.  Knives are made from a specially-formulated steel and do not require frequent sharpening but sharp knives make for quicker and quieter chipping.  Keep a couple of spare knives in hand, change them when the need arises, continue working and sharpen the others later.