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Drill
The 135° split point tip design allows for fast drilling and self-centering, which reduces walking and ensures precise drilling.
Counterbore
Creates a flat-bottomed hole with the correct diameter and depth for the insert, ensuring precise seating.
Tap
The tap creates new threads in the drilled hole to match the insert, ensuring a secure fit. It stays sharp even after prolonged use.
Installation Driver
Providing strength to drive the insert without deformation, the driver ensures durability and wear resistance, enduring installation forces intact.
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STEP 1: Drill Out the Old Threads
- Use the drill supplied in the repair kit.
- Ensure the drill is perpendicular to the work surface.
- Maintain the proper drilling speed during drill bit usage.
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STEP 2: Counterbore the Hole
- Use the counterboring tool supplied in the kit.
- The tool has a built-in depth-stop feature that limits the counterbore to the proper depth for the installation of the insert.
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STEP 3: Tap the Insert Installation Threads
- Use the tap supplied in the kit.
- Ensure the tap is perpendicular to the work surface.
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STEP 4: Install the Insert
- Use the installation tool to place the insert into the prepared hole.
Tobi Harvey
Reviewed in the United States on April 9, 2025
Worked great! This gave me more confidence in my threads since the original threads were aluminum
Jimmy
Reviewed in the United States on September 2, 2024
I recently had to change out my valve cover seal on the 2005 Corolla aluminum block. Aluminum is soft metal and can easily strip out. I used a torque wrench to make sure it was torqued to spec. All of them went in fine until the last one. My neighbor stopped to ask me what I was doing, and I over tightened the last bolt. I came on here looking for a helicoil when I came across these thread inserts. I figured I would give them a try. I'm glad I did. The kit is very easy to use. It came with clear, easy to follow instructions. All the pieces were nicely machined with a smooth finish and no burrs. I like that it came nicely packaged in a small plastic case. Before installing the insert, I did try it out with an M6 bolt. It screwed in really well. The bolt went in smoothly and didn't have any play. If you have a stripped out hole that needs threads, these work great. I've only had this installed for a few weeks, so I can't speak on how long it will last and hold up. The bolt is in tight and torqued to spec. I did add some orange threadlocker to the outside of the insert. I was going to use Red threadlocker, but I wanted to be able to get it out if something goes wrong with it. We will see how it is doing the next time I change out my plugs and coils. I forgot to get pictures of it installed, but I will also do that the next time I change the plugs and coils. If it lasts without deteriorating or rusting, then I will use a red threadlocker in the future for a permanent install.
Rob
Reviewed in the United States on September 16, 2024
Honestly, I wasn’t sure how these were gonna work but I use them on my 95 bronco. These are perfect. They really did the job they made life so much easier for us. I would definitely recommend these if you do any type of working on the car.
Astley
Reviewed in the United States on November 8, 2024
I was able easily fix pcv holes in my aluminum valve cover. Per instructions, thread lock is needed on inserts, which I did. The holes are now strip proof since the inserts are steel. I would purchase again.
Mntn Nerd
Reviewed in the United States on October 24, 2024
Worth every penny. Used it to repair threads on an upper oil pan that hold the timing cover to an Audi 2.0L engine. Good as new, easily able to torque to factory spec. $70 was far better than buying $500 upper&lower oil pans and spending another full day under the car removing and resealing two additional covers just to replace buggered threads.
John H.
Reviewed in the United States on October 14, 2024
10 pack of inserts alongside a tap, drill, insert etc. Manufacturing is good and everything works well. For the price you can't go wrong with these IMO.
Customer
Reviewed in the United States on October 1, 2024
What a breath of fresh air these thread inserts are. I'm going to restock my whole shop with these.My first experience with thread repairs like this was on my old ford Triton spark plugs. That was like 15yrs ago and I couldn't believe how nice they worked. But they never did get popular for anything else.Finally I'm seeing these kits more and more everyday. They cost more than a helicoil kit but it's comparing apples to oranges. These are by far superior in every way. Take care of the tap and drills and they will last you a long time. These are a real and permanent repair.
Customer
Reviewed in the United States on October 1, 2024
Great kit, nice compact storage box that keeps it organized, awesome.
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