There are times in a man’s life when he needs to drill a square hole through an 8mm thick piece of steel. If that man doesn’t have one or two thousand dollars to spend on commercial tooling to do this ...

There are times in a man’s life when he needs to drill a square hole through an 8mm thick piece of steel. If that man doesn’t have one or two thousand dollars to spend on commercial tooling to do this ...

Broaching is a metal-cutting process in which a broaching tool is pushed or pulled through a workpiece to remove material and form complex shapes. It is widely used for gears, holes, splines and ...