Blade for MBM 45-652 paper cutters, standard inlaid carbon steel (AKI-I) by Alliance Knife Company. This blade measures 22.440" long x 3.465" high and .315" thick, with 5 slots. (MBM I.D. is 45-652.) When ordering knives, please double-check the brand, model and serial number of your cutter, and measure your knife carefully.