No. 2 Morse Taper Arbor with Jacobs brand 3-jaw screw on type drill chuck.
Arbor and chuck have 1/2"-20 threads. Chuck capacity is 1/2" (1.5 - 13mm).
Fits an MT2 Headstock Spindle or Tailstock Ram.
Will fit all brands and models of wood and metal lathes with Morse Taper No. 2 MT2 spindles. Most Rockwell/Delta wood lathe models have MT2 spindles.