How to remove a s***w with spoilt head that make it difficult to unfasten with normal tools ?

Question

normal tools ( phillip / slotted type s***w drivers )

Answer 1

Once you spoil the head of a s***w it is generally necessary to grind the spoilt head off. That should release whatever it is holding.

You can then either drill the s***w out or leave it in place.

Answer 2

A wrong size of screwdriver can sometimes help get the thing turning.   With luck you can then unscrew it using a pair of pliers.  Then ago, you might be unlucky.

Answer 3

There are special screwdrivers for this, ask at a hardware store. The best require you to drill a small home in the head, then you use a screwdriver with a reverse tap on it's tip.

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