Bought from a local seller trying to complete the project today. With my drill press, the drill bit caught the 1" x 2" board and split as it drilled through the 2" side. Thinking the drill bit was spinning too fast, I tried my Makita XPH10 18V Cordless drill in a 2" x 6" piece of wood and the drill got stuck in the board and got a lot of bounce. The bit is stenciled as China Century. 16.11".