RIYCUOWT Damaged Screw Extractor Kit and Stripped Screw Extractor Set. Its A HassleFree Broken Bolt Extractor and Screw Remover Set Made from H.S.S 4341 with Hardness 63-65hrc.

Very reliable and convenient tool.Must have.

Though it didn't work out for the reason I purchased it. But it do work on stripped screws. Mine stripped screws was too small to grip on. So , overall the product is good. The seller (Cart2globe) delivered it a week before, so I am happy with the seller. Happy shopping on Amazon.

There's not much in the way of instructions (I feel like I'm trying to follow a recipe in the kitchen and they'll give you instructions based on the fact that they assume you've had a lot of time baking/cooking. Unfortunately I do not) I'm not a super handy person but I can handle the basics. As I learn new things I carry it forward etc, but I never really had any training with tools etc, so it's always on the go training. And normally as long as there are a lot of instructions it helps. Usually I try and figure it out and then double check with the instructions etc. In this case there are only "three steps" to extracting any screw and since the images are small I'm only 90% sure that I am on the right track and 100% sure that I need glasses :) It did work however, it just took me awhile to figure it out. One of the screws in the side of my swivel chair was loose and it broke because I was lazy and kept putting it off until eventually it just broke. I had a replacement screw but I have no way of getting the broken bolt out. This works rather well. I'm sure the more I use it the better I'll become. but even with limited knowledge it worked.

So far so good

60-year-old screws stripped, took them out like a flash

No real instructions, no markings of side A or B on bit