https://youtu.be/kX8Te5ch1Z0
Drilling Through Hardened Steel
In this video I will show you how to sharpen a masonry - concrete - hammer drill bits to cut harden steel
I will demonstrate drilling into hardened steel with a cheap carbide drill bit
this works well for drilling into knives or knife making
it is preferred to use a mill or at least a drill press but it can be done with a hand drill but I do not recommend it
