For sale is a Lof Of MT4 Drill Bits. Sizes are 2 inch, 1 1/2, 1 7/16, 1 3/16, 1 7/64, one more 1 7/64, 1 1/32. All have a Morse Taper 4 shank, and are in various stages of being used. I have never used drills like this, but I would imagine that most are still usable.