I was a bit disappointed with this set, I thought Ryobi would be a good choice but should have been a bit suspicious given the low price. I bought this kit even though I only needed a 1 5/8" bit, when I tried to use it I found that the shank was bent and a hole was drilled at an angle and my part was ruined. I ended up sharpening my old Irwin bit before redoing my project Something to say about the old adage, you get what you pay for, a lesson learned while using a set of seven Forstner bits bought for the price of one. I later used a 1 1/2" bit and it did a good job, the shank on this one was straight.