I don't think that it's a very good idea to mount a chuck (on a backplate presumably?) on an MT2 adapter into a rotary table. You will find I think that the amount of headroom you lose under your milling chuck is too great. Also, you will need to be careful abount direction of milling to avoid unscrewing the chuck from the adapter. Finally, for milling you'll need to make sure the MT2 is locked with a drawbar, which may make it difficult to use the RT horizontal.

Best to avoid the height taken up by the adapter itself and the backplate, and bolt your 4-jaw directly to tee-nuts in the table slots. Also using the 4-jaw you can accurately centre things on the table.

I have an HV6 table, seems OK, not from Warco, don't have the dividing plate gizmos. I've drilled and tapped some M10 holes in the table to clamp down my 4-jaw, and have a little centering gadget which is a disc that fits the central bore of the chuck on an MT2 taper – makes it very quick to mount the chuck central. I have to say that I almost never use the table, but I do have a little CNC mill and digital dividing head.

Chris

I think you forgot to mention the spigot on the backplate that locates the plate and hence 3j chuck on the centre of the rotary table ? I think most of the older/experienced operators use the same centering method for a lot of the jobs.

Emgee

Hi Dave, hurry up with that backplate so you can then do a second op on the part with absolute concentricity when set on your rotary table under the mill spindle.

Emgee

Locating off that MT2 would require clocking up every time for any accuracy.

Warco plate is solid so limited to depth of chuck to hold parts.