Anybody Use These Screw Extractors

[WranglerX]

Watch a program on TV and the guys had a broken air line fitting and they literally pounded this extractor into broken fitting and use a big crescent wrench with a lot of muscle on it and finally got the broke part out..... Looks more robust and useful than the average square or left hand twist easy out..

Knipex 5-Piece Rennsteig Double Edge Screw Extractor Set

DetailsFeatures and Benefits:Set contains 5 most popular individual sizesRemoves screws and bolts without damaging the threadsNon slip, double edge engagement removes the toughest fastenersLarge hex-head surface provides an outstanding gripCan be used on both right and left handed threadsSet...

www.tooltopia.com

 

[5030]

I use spline drive extractor's myself.

 

[K5lwq]

I have never used those but everything else from Knipex that I have work well. I bet they work well.

 

[two_bit_score]

I have a very similar set but not knipex brand. They work good on pipe. Not really for broken off screws or bolts.