DIY Threaded insert (Helicoil)

[kess]

Thanks for your time to complete my post.
Yes I know your method and I have used it many times at past, making two holes one the start and the other at the end point of the diameter at the line circle of thread insert and body.
Usually I use stainless steel rods but if haven't ss at the needed dia, then use hardened steel nails of cable retainer clips.
The video was produced with two basic aims,
i. A how to set up a cheap drill press (all these cheap drill presses working out of 0 point at least by 1~2 degrees)
ii. A how to drill a bold absolutely center without a lathe, and make your own threaded insert.
Happy New Year
Bill