I really can't complain about this hole saw set. I mean (at the time of writing this article) this set is priced at $27 with the appropriate coupon! It has blades ranging in size from 3/4" to 3", two mandrels and a hefty 1/2" hex shaft extension. In my opinion this is great bang for your buck. The teeth were dull just because I felt them with my thumb, but the first thing I did was install a 2" bit and it chewed through the 1/2" thick oak scrap I had laying around like it was nothing. Me have now drilled about 8 different sized holes with this set and the results have been exactly the same. Also the ring that pushes the pins into the holes of the larger bits rotates down instead of just pushing/popping down /to click like mine more expensive lenox does i actually prefer the mechanism of this JiGiU kit the thread seems more secure i dunno for $27 i think it's a bargain it might not be worth it for someone who does drilling holes all day or in very strong materials, but for the average homeowner or handyman this is a good buy and should meet most of your needs. For example, I spent a lot more money on port charters, so it looks a lot worse.