INCLUDES: (2) Jointer Knives 6" - Premium cutting tools for woodworking applications JOINTER BLADE COMPATIBILITY: Compatible with Craftsman 21788 and CMEW020. FEATURES: Each jointer cutting knife possesses mounting holes for easy alignment, along with a single cutting edge with a profile specially designed for smooth and fast cutting action (without tear outs) that consistently delivers high precision and professional looking results HIGH SPEED STEEL: HSS jointer blades allow you to cut hard woods, boards and other material at higher speeds with hardened sharpness, temperature protection and wear resistance for long term durability DIMENSIONS: Length 6-1/4" x Width 7/8" x Thickness 1/16"