This is a very nice dividing head for the money. Pretty well finished and smooth operating, very little lash in the gearing.If you were thinking to use an ER32 chuck in the headstock taper note that the taper is #2 Morse not #7B&S as stated in the specifications. That is really good news given that the ER32 chuck adapter for #2 Morse is much cheaper than the #7 B&S. They are also available with 10mm drawbar threads so you can eliminate the chance of slipping in the taper.I checked the run-out specifications and found the following: Radial run-out of the spindle nose spec 0.0006" Actual <0.0002" Radial run-out of spindle taper nose spec 0.0008" Actual was about 0.001" Radial run-out of spindle taper hole 4" distant 0.0014" Actual was 0.0025" Radial run-out of test bar with 3-jaw chuck 0.0031" Actual was 0.003"So the specs were pretty close and my measurements might not be perfect. The run-out with the 3-jaw chuck was due the the chuck back-plate (spindle nose locating diameter had <0.0002 TIR). The locating diameter for the chuck had a run-out of 0.0025". That could be corrected by taking a few thousandths off the locating diameter, center the chuck and use the mounting screws to lock it in.