Spare parts #13 - Making A Square Broach

It's not necessarily a common event, but when you need to make a square hole, it can be difficult to get a precise result. One of the best methods to achieve a professional cut is to use a custom made broach, so in this video I go through the process of making one from scratch.

This particular broach is used in an upcoming episode of the clock build, so keep an eye out for that video too.

Cheers,
Chris.