I would like to thank you VERY much for this tip. I picked up a pack to test out yesterday. I cut up six yards of fabric for a block swap and the blade was as good as new and I noticed no wear on my mat. I can't belive the price difference. 1 blade for a rotary cutter at the hobby stores is around $6. I picked up a two pack of rotary blades at HF for $2...awesome!!