Hello,
Altec & Woodchuck Brush Chipper Knives. Made after 2000..you get 4 knives
Part # 100-ro40208
Model: wc19
8-3/8 x 4 x 1/2 with 3 holes..THESE WILL ONLY FIT IN CHIPPERS MADE AFTER THE YEAR 2000
If you need knives made before 2000 see eBay item number:300394033893
Any question call us 435 673-9707
thanks