Spot weld cutter

[FJB2069]

I bought one of the drill bit types from east wood. IT works ok, but what I found works the best is a die grinder. Works ten times faster , much less effort, and allows to get entire spot weld area. Sometimes the spot welds are not concentric so cutting with a cutter can still leave some of the weld, plus if the drill drifts you are still left with welded material.