How to drill a file
How to drill a red-hot file into a light one? A very simple way that you need in life. A little trick of using the tool for other purposes or not for the intended purpose. A short master class on drilling hardened steel.Let us spray abundantly the drill and the place of drilling with grease.And proceed to the drilling holes. Just like with a regular drill and metal.After a brief drilling, raise the speed.Again, let’s spray with grease and continue drilling.The hole is drilled, but not completely.Since the drill on the glass has a taper-shaped soldering, the drilled hole, when not completely passing the drill, will also have a cone shape.To make a hole even, you need to turn the file and drill a hole on the reverse side.In most cases, craftsmen take a special drill for such cases and regrind, I also suggested a simpler method.