3 Piece Hubless Quick Chuck Adapter Set for 1" Arbor Brake Lathes 70040 Ammco. Ammco- 3000, 3800, 3850, 4000, 4100, 6000, 7000. Any 1" arbor lathe including Fits the following brake lathe 3 Piece Hubless Quick Chuck Adapter Set for All 1" Arbor Brake Lathes.