DEWILL Broken Bolt Remover, Stud Extractor Tool to Locks and Removes 1/4-Inch to 1/2-Inch Rounded Studs, Hexagonal Flat - Suitable for Rust, Painted, Damaged Waste Bolts

This tool is awesome! It quickly removed the stud without slipping, unlike other tools.

I typically don’t leave feedback on a product, but with this one I feel it’s warranted. I have a 1993 Chevrolet 1500, I had bad exhaust donuts that was causing an exhaust leak, this truck being as old as it is doesn’t require emissions in my state but won’t pass inspection with an exhaust leak. Each manifold on the V6 has 3 studs, totaling 6 studs which all but 1 of the original studs snapped off, luckily there was at least an inch of the studs remaining, I sprayed the studs with good penetrant oil a few times and this tool removed all but one (still working on it) but it worked extremely well. The only thing to note it is fairly large about the same size as a 1/2 inch drill chuck, and it can be hard to get it to release the broken stud after removal, this may just have been due to mine being really rusted and stuck, have a large adjustable or channel locks handy it will help in the removal, I would say an impact helped but I used a ratchet to remove two of the studs due to I didn’t have room for my electric impact and it worked fine just took a little longer. This device will only work if you have a portion of the bolt or stud sticking out, it will not work on a flush break.

I'm not sure what the use for this could possibly be and the positive reviews here are rather suspect. The design makes it so the pieces that are supposed to grip are recessed into the outer metal shell, making it nearly impossible to get a grip on a bolt head. When I finally managed to get a bit of traction, the design of the tool seemed to force the grippers off of the bolt head instead of creating a stronger grip. After a few tries and me practicing on a loose bolt to see what I was doing wrong, all of the internal components simply fell out of the tool. I owned this for a total of about five minutes and it didn't even come close to helping me get a rounded bolt extracted.

After watching the video on this listing I decided to order one after the head snapped of on the thermostat housing of my 79’ trans Am, and I needed to get the frozen stud out of the intake manifold to replace it. I doused the bolt in penetrating fluid many times over the next 24 hours.The tool arrived next day, and I was exited to give it a try as it seemed heavy duty and up for the task. As there was a good 5/8 protruding from the intake, the tool was easily able to grip it, but it seemed the more I tightened it seemed to go crooked. I backed it off and reseated the tool and tightened it down again. As I used a 3/8 inch ratchet, it eventually stopped tightening and the bolt released and started to turn out.My joy however was short lived as I noticed that although it did the job, one of the teeth had sheered as can be seen in the attached picture.I think it just needs a little improvement, and it will be a good tool, but because it is now unusable. I’m giving it 3 stars because it removed the sheered bolt, but will be looking for a stronger option for next time.

This didn't extract the bolt for me. In all fairness the bolt I needed to extract exceeded 135 psi torque and I didn't have much bolt for the extractor to bite down on. This tool didn't work for me but it is a good tool.

Exactly what is says, on a side note the first package was lost. Notified seller and the immediatly sent another order. That is great customer service

Excelente está herramienta la recomiendo

Works as advertised