This blades are wonderful after looking at several different sites I was so glad to find them. You don't have to handle the blade, just slide the old one off and slide in the new one.I am ordering an extra pack so I never have to use a dull blade again
They are what they are for. I use it as often as I can and have not experienced dullness. I don't like the idea that I must replace them so often as recommended by you.