Drilling harden steel with a hand drill

[shopandmath]

Drilling harden steel 59 RC. with a hand drill 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 bits this works well for drilling in to 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