Do yourself a favor and make a note of all the bit sizes that come with it - it's not as good as you think it is. They appear to be well made. Haven't used it yet but was very confused about the size when I opened the box. Example - 5/16 - 1 x 4 inch - 2 x 6 inch and 1 x 8 inch. A few other examples are 9/16-1 x 8 inches and 1 x 10 inches. There are no short beats below 9/16. ". Then there is 23/32 - with an 18-inch assumption, that's instead of 3/4 inches, and 25/32 with an 18-inch assumption, that's instead of 7/8. In general, I'm not happy with the variety.