This is semi-automatic morse taper shank drift meant for pulling MT4, MT5, MT6 morse taper shank, such as taper shank drills, taper shank sleeves etc, (no hammer required)works by putting the drift part into the elongated hole and using the handle bending around 90° to release morse taper shank, easy to pull off the morse shank, operate quickly, saving time and easy to use, a great machine tool