14Pcs Screw Extractor and Left Hand Drill Bits Set, Bolt Remover, Reverse Cobalt HSS Steel Drill Bit for Remove Stripped Screws and Broken Bolts

Did a great job. Got a troubled broken bolt out, I tried with a lesser brand. Had to get these. These gripped nice and strong. I will buy it again. Also, get cobalt bits don't waste time buying regular bits and they don't work. I wasted money on regular bits, bolts are strong steel, and need stronger steel to drill a hole in them. I wore out bits, they didn't drill deep enough to get a grip. I will buy again if i ever need to. I don't think so these will last a lifetime.

I tried another set before this one and had no luck. This one worked great!

worked okay, one bit broke extracting a drill bit. Saved my behind when I got a motorcycle rotor bolt over-tightened.

These worked well for me; I had to remove a broken bolt on my mower deck, took about 1 minute total.

Kinda cheap I didn't have a lot of hope it would work but it worked like a charm on broken exhaust manifold bolts just not very much room to work it

When your instructions say put a wrench on tap to get the old screw out, HOW DO YOU THINK THAT'S GOING TO WORK??? When you copy american parts, make it better, not worse. Make your TAP ends a standard socket size 3/8 or 10mm, so that you can put a ratchet on it, not some weird 5.5mm or something like that. What a fail. None of the taps would get my screw out, even after two days of PB.llll I deserve my money back after spending over an hour dealing with a tool that fails.

Number 4 extractor snapped on first use. Other extractors seem to work if no heavy torque required.

Excellent product and great service

The base of the bit is square, having trouble finding an adapter to make it longer for my need.Should have been hexagonal. Might work for someone else