We have a built in shelving unit with some shelves I wanted to have lights on, but outlets were in the wrong spots! Worked beautifully, the shelves are about an inch and a quarter thick. No problems at all, super smooth cut. Very happy!My husband ordered these in order to install a new cabinet with plumbing holes required. He had different size holes to drill and these worked perfectly. They cut cleanly and easily. He was a happy man other than the length of time it took for delivery, five days.I gave this a 4 star due to the fact I haven't used them yet but everything looks strong and well built. I am pleased with the product.Blades dull after only a few uses and pilot bits break very easilyYour add says, 11 Pcs 3/4" to 2-1/2". I received 11 Pcs 19mm to 64mm, not what I though I was ordering.The add did not give me a way choose, really bad.I like them they do seem to work well.The only thing I don't like some of the saws don't have markings on them to let you know what size they areI ordered this for 2 holes. It does not come with 1 1/8" hole . That's 1 of the 2 I wanted. And its advertised in picture and description.Just received this in the mail yesterday and used it today for the first time and broke . The material is not good qualityPros: - Arrived in less than 20hrs - Used one of the holes saws so far and it made nice clean hole through light metal cladding on both sides of wooden core door.Cons: - Two of the Arbors set screw holes are not threaded, good thing it comes with more than one. - Smaller hole saws have no size markings on them.Good enough for my needs.Description includes 1 1/2" hole saw - but that common size is not included in the 7-piece set Grrrrr :(The arber bit breaks in even soft metals. One even broke in fiberglassThis is simply as promised. And I did use it for so many projects. Good value for money