I've got several 5/¹/16" and ⅜' bits I've changed the angles to around 150° to keep from drilling too deep into the underlying material.
How did y'alls swap meet go?
Matt, have you ever tried these? Picked them up at a swap meet years ago. Center pin is spring loaded. If the saw blade gets dull just un-screw it and turn it around. Works pretty good as long as you center punch the spot weld.