20 inch Blade for Grizzly, Shopfox, Woodstock and other 20" Planer 20" x 1" x 1/8" Planer blades Pack of 4 knives 20" planer Blades for Grizzly G0454W, Woodstock W163, W7147 Xcalibur knives are made from Higher Grade of HSS for longer edge life compared to Regular Blades replaces Grizzly G6702 HSS Planer Blades, 4-Pack Specially designed with close tolerance for fast and smooth planing We also stock Planer knives for Grizzly , Delta , Rockwell , Dewalt , Portercable , Black & Decker and other Planing Machines.