Thosaf extractor set junk

[MarPar]

View attachment 1942491

 

[Davefinan]

View attachment 1942491

thath ludakwiss

 

[kiwigtx]

thath ludakwiss

You taking the pith?

 

[Davefinan]

Ahh pith on it.

 

[kiwigtx]

Ahh pith on it.

Orange pith....must be dehydrated...

 

[Moparfever65]

I drill with LH bits. A lot of times I think the heat inside helps as the offender sometimes comes out without using an extractor. What a relief

The reason drilling releases a stuck bolt is because the hole allows the bolt to shrink by relieving internal stress. If it's heat you're abusing your drills. BTW, I use extractors regularly and rarely break them. I prefer "square" extractors, as the spiral ones tend to expand the bolts into the wall of the hole, thereby increasing the friction you're trying to overcome. With a square extractor, you just tap it in enough to get a bite, then any rotational force doesn't try to expand the bolt. One other tip is to not drill too large of a hole. That's to help prevent the expansion I'm talking about. At work I'm the "go to" guy for extracting screws.

 

[toolmanmike]

The reason drilling releases a stuck bolt is because the hole allows the bolt to shrink by relieving internal stress. If it's heat you're abusing your drills. BTW, I use extractors regularly and rarely break them. I prefer "square" extractors, as the spiral ones tend to expand the bolts into the wall of the hole, thereby increasing the friction you're trying to overcome. With a square extractor, you just tap it in enough to get a bite, then any rotational force doesn't try to expand the bolt. One other tip is to not drill too large of a hole. That's to help prevent the expansion I'm talking about. At work I'm the "go to" guy for extracting screws.

Absolutely. These are made by Rigid and includes the proper drill bit for each extractor. The set even comes with drill pilots for correct centering. They are splined and don't expand the hole like the tapered ones do. The nut slides down to the surface for more strength and less twist. When the end get's damaged from twisting or slipping, you can grind the bad end off and continue using the tool. These were a very popular sale on my tool truck.