In turning operations, diameters usually are measured with micrometers, although spring calipers may
be used to check roughing cuts or where close accuracy is not required.
The method of making length measurements is made by spring, hermaphrodite, veneer, or micrometer
calipers or micrometer depth gages can be used.
The shank will be finished to .500 or 1/2 inch, however when you get the stock down to within .030 you
need to take a .010 pas at a slower feed to clean up the work, If you have a Tool Post Grinder and plan
to finish the work by grinding, stop about .010 to .015 oversize. If you do not have a grinder, you can
take a fine cut at the slowest feed, finish the work to .003 to .005 oversize, and use as is.
Remove the turned part around, remove the 1-inch dog and put the 1/2 inch dog on the turned end. Set
the work piece back between the centers, adjust the dog and tighten it. Touch the point to the stock and
move it slightly past the work, and set it in .020. Engage the feed and take the stock down 10.780, then
take the finer feed to finish it to .015 over finish size. If you are going to use without grinding, take the
stock down to about .005, or .755.
Next, we have to finish the width to. 187 for the cutter. You need make a groove or recess on the shank
next to the large end. This can be done with a cut off tool, or a square end-cutting tool. Run the recess or
groove to a depth of .025 per side. Use a right hand tool holder and face off the inside of the large end
to get a thickness of .190. An undercut is also made on both sides for clearance.
Finishing cuts are light, usually being less than .005 inch in depth, with the feed as fine as necessary to
give the needed finish.
Sometimes a special finishing tool is used, but often the same tool is used for both roughing and