hard steel?

How can I cut and drilling old bed frames without dulling blades and bits?

randofo4 months ago

First, you need to get drill bits intended for hardened steel (Cobalt with HSS high speed steel - or carbide tip).

You will want to lubricate what you are drilling with lots of cutting coil to increase lubrication and reduce heat.

Not sure how big of a hole you are drilling, but you will likely want to start with a smaller pilot hole (say 1/16 - 1/8). With a small drill bit like that, you will want it to spin relatively fast.

When drilling, you should probably employ peck drilling (apply pressure for a moment, release for a moment, and then repeat).

This should work, but may take a little trial and error if you don't know exactly the type of metal you are dealing with.