I bought the import blades on ebay. They work fine for me in a no brand cutter. I have the Grace Truesharp 2 electric sharpener. After each cutting project I sharpen the blade, alternating 20 - 30 seconds on each side, three times. This has allowed me to use the same blade for 4 quilts now and a few other sewing projects and still going. I know some people do not like the Truesharp but it has performed well in my hands. My branded cutters and blades do not cut as well nor do they seem to sharpen well. I think that the import blades are thicker, therefore allow themselves to be sharpened better.