I bought a set of these awhile back, and near as I can tell, they're worthless:
They did not come with instructions. Basically, all they do is drill a really nice v-shaped hole in the middle of the screw, killing any remaining threads. But the sure don't help extract the screw... but of course my technique is probably wrong. But I can't find any instructions for these online either.
Last night in a fit of rage I ran to Lowes and picked up a set of Grab-It extractors. Within 30 seconds of opening the package I had the stubborn screw out.
So I think my original set is going to hit the trash, unless someone here wants to explain how they are supposed to work
Between this and the countersink bits, sure having my luck with bad-quality tools lately.
-Tim
They did not come with instructions. Basically, all they do is drill a really nice v-shaped hole in the middle of the screw, killing any remaining threads. But the sure don't help extract the screw... but of course my technique is probably wrong. But I can't find any instructions for these online either.
Last night in a fit of rage I ran to Lowes and picked up a set of Grab-It extractors. Within 30 seconds of opening the package I had the stubborn screw out.
So I think my original set is going to hit the trash, unless someone here wants to explain how they are supposed to work
Between this and the countersink bits, sure having my luck with bad-quality tools lately.
-Tim
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