Stay away! Poor workmanship, low strength, cheap quality! Better Chinese shit from Harbor Freight. Straight out of the box on the die were burrs and scraps of metal from cutting teeth into the die, terrible quality control. It was so hard to get this thing to cut, I had to let go of it after every quarter turn, and it was bloody hard to pull back. I punctured my thread about 7mm and the leading edge of the prongs on two of the three bits broke off and one of the pieces came loose and hit my…