There are so many good things to say about this 12-piece RYKER hole saw set. up to 2 inches thick (see my video). The kit also includes an easy-to-use 7/16-inch quick-change mount with no wobble. My husband is so happy with this set because he said he thought about not trying to make a big hole with a jigsaw again which prompted him to try this set straight away so he grabbed his cordless drill and drilled a 2" x 4" standing hole with ease. After that my husband has used it several times and it still works. strong. This set works very well. It's almost any size you need and it's am best to have it and not need it to not have it and not need it You can use it for: Plumbing Electrical Cables All sorts of things you may need a hole This way you can make one Make a hole without making a mess Overall very happy with this purchase, durable, versatile, great quality and price Highly recommended.