01-04-2014, 04:27 AM
customcutter Wrote:NF, If the tool is 1.000 and the upper is 1.002 that would be a tight slip fit. I'll see if I've got the tools to measure mine properly tomorrow with a mic. I may still be making a tool to check the squareness on the upper and lapping if needed.
It is correct (checked with both a dial and electronic caliper) and, yes, it is a tight fit. Light machine oil is recommended to facilitate the fit. I've read some reviews of the tool, where the user apparently had the -.002 tolerance upper, and was not able to fit the tool. My thought is that if you went with 0.998", it should still serve well, and keep the tool reasonably straight.