I go to a left handed drill bit after screwdrivers and pliers fail. (Impact drivers and diagonal cutters are examples of these respectively of course).

If the left handed drill bit fails then it’s time for grinding, although I’d probably use a Dremel with a cutoff wheel since the screw is relatively small and the Dremel is considerably easier to control than an angle grinder.

Harbor Freight Left Handed Drill Bit set

Not the highest quality (doh), but more than adequate for a couple of “one off” jobs. Using a left handed drill in this case is straight forward since there is a centered “hole”, often you have to grind the fastener flat and then use a center punch.

I go to a left handed drill bit after screwdrivers and pliers fail. (Impact drivers and diagonal cutters are examples of these respectively of course).

If the left handed drill bit fails then it’s time for grinding, although I’d probably use a Dremel with a cutoff wheel since the screw is relatively small and the Dremel is considerably easier to control than an angle grinder.

Harbor Freight Left Handed Drill Bit set

Not the highest quality (doh), but more than adequate for a couple of “one off” jobs. Using a left handed drill in this case is straight forward since there is a centered “hole”, often you have to grind the fastener flat and then use a center punch.

As an idea, drive a similar screw into a piece of scrap wood and try/test the extraction on the ground first, this will help with bit size selection too. You’ll be pleasantly surprised how well the drill bit will bite into the screw and how well the drill will back the screw out. YouTube has several videos demonstrating this technique.