At only a third the price of the top rated 2 inch drill press on Amazon, this hole saw is a beast! saw, and its body appears to be either sintered or forged. It comes in a nice case with TWO center drill bits and an Allen key. 1/8 inch durable stainless steel. Using a low speed drill and plenty of cutting fluid, this hole saw drilled through the floor in less than five minutes, leaving very smooth hole edges that required no further work other than grinding the sharp edges of the hole. After cleaning, the holesaw teeth looked like new.