So I bought this to level some boards. Like most of you, just looking at this bit is enough. I am very impressed. Yes, it's a bat from China. but with the ability to substitute carbide blades this will be a tool I use frequently. I just made a 24" x 18" cookie in about 10 minutes. On both sides and spaced about 1/2 inch from each side. It cuts like butter. I was sure that even tiny pieces would break out from the middle of the piece. the thing is big and can pack a lot. I was curious how long it would take. So I made a 1/4" deep cut across the entire width of the blade and it didn't wobble at all. Cut some end grains of black locust. Would definitely buy again and recommend to a friend. Looks like I'll have to getting some more blades for this because I'm very excited about leveling my panels now.(FYI, the blades are still pretty sharp after cutting both sides of the biscuit.