After trying this product, I was left unimpressed. The set lacked the precision I expected from an industrial and scientific tool. While it did have a reasonable price, the quality was not up to par... The only positive aspect was that it had a sufficient number of options, but the cons outweighed this benefit. I found the bits to be dull, and they chipped easily during use. overall, I would not recommend this router bit set to a fellow woodworker..