Sharpening Adjustable Reamers

[benmychree]

I also note that adjustable reamers of the normal type can be used with a screw on pilot that replaces the adjustment nut on the front end of the reamer, it comes with the same sort of centering wedge as used on the reamers shown.

 

[AmericanMachinist]

I have sharpened them many times with a tool & cutter grinder on centers. The body behind the tapered part that does the cutting can be reground cylindrical, then the tapered portion can be reground with clearance, I just cut And try to duplicate the clearance angle and taper.

Are you suggesting to use a tool-post grinder and mount the reamer between centers on the lathe? Or is the tool & cutter grinder a different machine? Thank you

 

[benmychree]

Are you suggesting to use a tool-post grinder and mount the reamer between centers on the lathe? Or is the tool & cutter grinder a different machine? Thank you

Yes a very different machine.

 

[benmychree]

I would add that if the body of the reamer cutters (not the cutting portion) is reground, there should be a tiny amount of back taper to avoid binding.