I bought this to replace a $100 bit set I bought off ebay (4 of which broke - you get what you paid for, I think) - this is the bit amazing - cuts through MDF like butter (like another reviewer said). I also noticed that it doesn't burn MDF like other router bits, which I think is dangerous. I've used it for MDF, aspen board and composite board. Works perfectly. I will definitely recommend it. I plan to replace my existing beats with Freud's beats when I take a break.