--- title: "Why I’m Adding this Rotary Thread Kit to My Tool Box—and You Should Too" description: "Damaged threads can't stop you mid-project anymore. After using this restoration kit, I found it to be a game changer for auto work and more." date: "2024-12-13" modified: "2024-12-13" authors: - name: "Glenda Taylor" job_title: "Staff Writer" link: "https://www.bobvila.com/authors/glenda-taylor.md" url: "https://www.bobvila.com/reviews/rotary-thread-kit-review/" categories: - "Reviews" - "Tools & Materials" tags: - "Commerce" - "SPR" --- # Why I’m Adding this Rotary Thread Kit to My Tool Box—and You Should Too ![Rotary Thread Standard Restore Kit on a workbench]() *Photo: Glenda Taylor for BobVila.com* **Our Ratings: Ease of Use 5/5; Performance 4.8/5; Durability 5/5; Value 4/5** Nuts, bolts, and threaded pipes are found in fastenings and fittings in everything from small motors to automobiles and plumbing systems. And they’re great—until their threads are rusted, crushed, or stripped, and then they’re useless. At least, I *thought* they were useless until I tested a simple-looking tool called [Rotary Thread](). Rotary Thread isn’t a standalone tool—it’s more like an assortment of bits designed to be used with a drill or a rotary tool, like Dremel. The bits are helpful enough that the [Rotary Thread Standard Restore Kit]() recently won a spot in our competition to discover the best [new hand tools of 2024](). I tried out bits from three different [Rotary Thread kits](): the Starter Restore Kit, the Standard Restore Kit, and the Master Restore Kit. To test their performance, I gathered several bolts and nuts with damaged threads and clamped them securely to my workbench. Then, I fitted [Rotary Thread bits]() in my drill and Dremel and got busy fixing the threads. The tapered edges of the spinning bits quickly ground away rust and reshaped the grooves in the threads. Rotary Thread makes a variety of bits for specialty filing/smoothing uses, and many of those are geared toward [mechanical repairs](), such as rebuilding hydraulic cylinders. But the bits in their Standard Restore Kit are game-changers for anyone who’s ever had to stop mid-project and run to the hardware store because they ran into a nut or bolt with damaged threads. With Rotary Thread, restoring the threads to a workable condition is quick and easy. ![Bolt that has been cleaned with Rotary thread]() *Photo: Glenda Taylor for BobVila.com* ![Fitting Rotary Thread bit into drill]() *Photo: Glenda Taylor for BobVila.com* ![Nut fits on restored bolt after the thread is fixed]() *Photo: Glenda Taylor for BobVila.com* ![Repairing bolt with Rotary Thread]() *Photo: Glenda Taylor for BobVila.com* ![Repairing large nut with Rotary Thread]() *Photo: Glenda Taylor for BobVila.com* ![smoothing internal surface with Rotary Thread]() *Photo: Glenda Taylor for BobVila.com* ![Rotary thread starter kit with box]() *Photo: Glenda Taylor for BobVila.com* ![Rotary Thread Tool starter kit]() *Photo: Glenda Taylor for BobVila.com* ![Clamping bolt for repair with rotary thread standard restore]() *Photo: Glenda Taylor for BobVila.com* ## Where to Buy the Rotary Thread Standard Restore Kit **Get the Rotary Thread Standard Restore Kit at:** - [**Amazon for $130**]() - [**Rotary Thread for $149.99**]() ## Author Glenda Taylor is a BobVila.com staff writer with a background in the residential remodeling, home building, and home improvement industries. She started writing for BobVila.com in 2016 and covers a range of topics, including construction methods, code compliance, tool use, and the latest news in the housing and real estate industries.