Carbon steel construction. To remove broken bolts, drill pilot hole in broken fixing and screw in the LH-threaded extractor. Drive size and drive type - It is important to consider the drive size and type of the stud extractor to ensure it will fit in the power tool or hand tool the extractor will be used with. Stud extractors are used when a damaged or seized stud is required to be removed from the workpiece to continue the project. They work in a way which doesn't damage the surrounding area of the workpiece and cleanly remove only the damaged stud. Stud extractors are a tool which can either be used manually or with a power tool to extract embedded, broken, or damaged studs. Stud extractors are usually made of high carbon steel or hardened steel allowing them to easily route into the damaged screw or stud and then extract them. I didn’t know that it was a “pipe wrench” until very recently. My boss at that time was a German master mechanic and it was he that suggested I buy it. I had never seen anything like it. I knew of various styles of stud removers but this one was unique. A traveling tool salesman sold me it to me as a stud remover. At that time I didn’t know that I would be buying a stud remover like no other. This tool worked so well that within a short time it became the tool to use to remove studs. How It Works

Type of extractor - As mentioned above, there are various types of stud extractors which determine how they work. The two impact quality stud extractors come in sizes - 1/4"D and 3/8"D and are fully adjustable. They also have spare jaws - Part No. 2291 and Part No. 0888 available in both sizes. Features & Benefits: Never let a seized stud stop your project when you can easily remove it and keep the surroundings undamaged. You can choose from individual stud extractors to stud extractor sets to ensure you have the right extractor to hand. Cromwell offer a curated range of stud extractors from popular brands such as Irwin® and Sykes-Pikavant®.There are various of stud removers available on the market, which differ based on the required tasks. For example, some stud removers an impact tool whilst with others a single tool can be used on multiple stud sizes.