What's the easiest way to drill 1/8 in holes through a stainless steel rain cap, top plate (vertical portion) & liner.
I must be doing something very wrong. I'm using a new DeWalt cobalt bit, going slow and keeping everything cool... and this is taking forever.
Problem with stainless steel is some grades can be work hardened. Once that happens you’re screwed.
Easy pressure. Slower turning speed. Lots of cutting oil. The oil needs to be on the drill points. A drop at the start with nothing during the process is absolutely useless.