Machinistblog.com

Demonstrates how to case harden a piece of steel by heating it until it is cherry red and then covering it with a powdered substance that transfers carbon into the surface of the metal. A number of products like this are available.

A large collection of short videos (.wmv) that demonstrate the equipment and procedures used by machine shops. They are typically 30-40 seconds long.

A short interesting video of a chess pawn being turned on a industrial CNC lathe

A useful and easy to make tool.

How to drill a very small hole

A very interesting collection of short videos. Many of them show industrial machining and manufacturing processes. Others show how things are made or how they work.

See how to use a Super Glue Chuck, which you can easily make, to hold thin pieces for turning on a lathe

Nicely done video showing a variety of different turning techniques and procedures done on a Unimat lathe