3-1/4 Inch 82mm Planer Blades For DW6658 DW6654 For DeWalt DCP580B, DW675K, DW677K, DW680K, DW678K, D26676 or D26677 and 3-1/4 MANY OTHERS Blades Size: 3-1/4 in Blade Material: Tungsten Carbide Reversible and disposable Package 10 Pack, Plastic case packaging The blades is Reversible and disposable . IIOV TOOLS is proud to offer exclusive 3-1/4 Reversible Carbide Planer Blades that will last approximately 10 times longer than our premium HSS planer blades. Our carbide-tipped knives feature high-grade micrograin carbide that has been permanently bonded to a rugged steel body. This steel and carbide combination on each planer blades results is super-durable and able to withstand the high-speed stresses inside your hand planer far better than any other brand of blade out there. Since you won't have to sharpen these knives nearly as frequently as HSS knives, the time savings alone will be significant.