It took me a bit to cut a 2x6 material (1-1/2 to 1-5/8 thick) and it was the best I could find. I asked online for the length of the cut and the factory rep was quick to reply that they cut off 1-1/2" stock. (Great customer service!). I finished my project but wanted the drill bit to only be a bit "small." I would advise the manufacturer to add 1/8 to 1/4 inch to the length if possible.