How to drill holes in 38 thick steel plates?

slot cutting drill bit for metal   Dan slot wow

So I decided to remove the metal from the slot by chain drilling and filing The bit that has to be right is the marking out and centre

One thing that would work is a metal cut off saw and a pillar drill vice as needs to hold lower than a normal vice and rigid draw cuts on bar If you try this with a 34 cutter, either a drill bit or end mill, I bet you end up wishing you hadn't For a 1-off hack, you could peck out

anode slot cutting machine The most common are HSS , carbide and cobalt HSS is the cheapest and most commonly available of the three, however HSS slot drills cut the But it depends on your machine, I used to do slots mid-plate just by ramping down with a 5 flute cutter, much faster There's a little bit more