On Jul 9, 10:19*pm, "DoN. Nichols" wrote:

* * * * That is good advice anyway -- that is using the largest *thread*
OD, not the largest collet capacity. *And if you have things like 3-jaw
and 4-jaw chucks mounted on collet shanks, check those as well. *

1.225 for a Chinese 3-jaw, 1.233 for a Sherline.