Replacement Blades. The best way to cut a great mat is with a sharp blade.Logan replacement blades are the only blades specifically sharpened to give a professional finished edge to a mat. Always use Logan replacement blades in your cutter for best results. 270 blade fits the Logan 250, 301, 401, 424, 440, 450, 500, 525, 700-S, 701, 750, 2000, 3000, 4000. 269 blade fits the Logan 650, 655, 660. For regular mat board 268 blade fits the Logan 650, 655, 660 for 8-ply mat board
