FOX DISCOVERY 6-1/8" inch Jointer Blades for Craftsman Jointer Power ToolsFOX DISCOVERY 6 1 8" inch Jointer Knives for Craftsman Jointer The quality of the HSS is top notch and second to none. The blades are ground with both a primary 40 bevel and a secondary 45 bevel close to the edge. The three blades are razor sharp and ready to go. The dimensions for each blade are: Length 6 1 8" Width 0. 673" Thickness 0. 123" (nominal 1 8")