Unknown tools nº7 - Screw extractor set

Unknown tools nº7 - Screw extractor set
Screw Extractor Set

In the back of the box indicates the tolerable thickness for each extractor

The front is conical...

we introduce into the drilled hole and turn left

two tests

The screw will come out harshly in this way

The hole should be at the center of the screw

The hole has to be 50% of the thickness of the screw

If we make too big a hole...

Note: small extractors break easily

Видео Unknown tools nº7 - Screw extractor set канала Cruzdelasadas technical