Stud Extractor, 1/4 to 1/2 Inch Broken Bolt Removal Tool | 3Jaw, 3/8 Drive, CR-MO Steel, Compact for Tight Engine Spaces, Quickly Remove Broken, Rusted & Corroded Bolts and Studs

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.

Saved me in a very unique situation.. One of the Bolts holding my lower Control Arm snapped. Thankfully I exposed many inches of bolt by getting the part off, but my vice grips kept slipping. I tried pb blaster, heat, impact, a mixture of all of it.. then I found this and the bolt was out in less than 5 mins from touching the box. Caveat: usually bolts snap flush to the body they are embedded in.. this tool only works right with min. 1in. or ideally +2 inches of bolt material exposed. Also.. as other reviews have noted, this tool is BIG. So you also need quite a bit of clearance for it..

When I first opened the Dewill bolt extractor, I was originally impressed with the weight and seemingly sturdiness of the tool. However, once I took a closer look, the three jaws were loose and wiggly - like a loose tooth. I know they needed to move in and out to accommodate the bolt size but they shouldn’t move side to side. The tool was difficult to move by hand. As I hand tightened the tool, the 3 teeth didn’t always move in unison. When we actually tried to remove a bolt, the springs came loose and the jaws fell out. I guess you get what you pay for. Since I needed to remove the bolt, I purchased a PT Extractor from Autozone and instantly notice the quality difference. Save time and money and buy the better built extractor from the start.

Will probably work well for most people. Could not use for my project as the space was too limited and the jaws of the extractor do not extend far enough for tight spaces.

If youre doing manifolds you'll want this. Works great, good grip, easy to use and saves a lot of time with vice grips and drills! Durable and pulls snapped bolts out easy. Its a lot bigger than what you think , but its solid and small enough to get into tight spaces.

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.

Works great!

Still using this 4 years later in my machine shop, super durability from this product, works better than the socket style ones, provided you can get this on there and nothing is in your way. This will remove those old exhaust manifold bolts with ease, provided you hammer the bolts to shock them and use penetrant. Get a good feel for the bolt through the tool, you can always tell when she is going to let go. If she starts groaning back off immediately and hammer some more and apply more penetrant. Turn a 15 minute job into an actual 15 minute job with this great cheap versatile heavy duty tool that's the perfect size and weight. It even looks great.