Are these reaming tips any use?

[Parlo]

I posted this in the beginners milling tutorials but it has been removed because:

" Reason: doesn't meet the standard for a good video. It obscures the intent, requires tooling not commonly available. "

If anyone has a spotting drill - stub drill & a reamer then you may find some of the tips useful. The filming leaves a lot to be desired but hopefully interesting.

 

[Eddyde]

Some narration would help. Especially for a video aimed at beginners.

 

[Mitch Alsup]

It seems to me that the reamer was used at a very high RPM (compared to manual machining)

 

[GL]

General rule of thumb for reaming - one size under (1/64 or 0.015) drill, ream at half speed of drill. I realize may be repeating video, but if it wasn’t clear, that should be the gist. The reamer will follow the hole, if you need concentricity, you need to bore. Single point tools, within flexture, will be more concentric.