Best Spot weld cutting method

These are spot weld cutters I use. I got mine locally at an auto paint store. If you're not in a hurry you can get them from ebay a lot cheaper. If you go slow (low RPM) and use cutting oil one single cutter will last a very long time if you pre-drill the spot weld in the center. I usually have two drills, one set up with the center drill and another set up with a 1/8" drill bit. After I get the center drill started I switch to the 1/8" drill and drill all the way through. After I've done all that I switch to the spot weld cutter and finish the job. You can do it anyway you like!!

4× Double Sided 3/8" Rotary Spot Weld Cutter Remover Drill Bits Cut Welds Kit | eBay

Treblig