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DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2"

4.5 out of 5 stars 160 ratings
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Purchase options and add-ons

  • ALL-IN-ONE KIT: This 131-piece thread repair tool kit by DAYUAN includes bits, taps, and inserts in the 5 most needed SAE sizes: 1/4", 5/16", 3/8", 7/16", and 1/2"
  • PURPOSE BUILT: The installation tools in this helicoil kit are constructed from high-speed steel for superior handling while the inserts are heated-treated 45# steel for greater strength and longevity in place
  • WIDE APPLICATION: Our drill and tap set is ideal for restoring stripped or damaged internal threads as well as for performing maintenance work to protect any threads from wear and tear
  • EASY TO USE: The convenient carrying case holds and organizes all the parts for easy transport and storage between jobs; on the site, the drill bits quickly create room for the installation tools to smoothly fit the inserts that repair your old threading; the breakoff tools clean things up for use

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DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2"
This item: DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2"
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From the brand

Previous page
  2. shouhou

  3. Started by providing OEM services for renowned brands, we've dedicated a decade to the automotive tools industry. With our exceptional quality and the widespread adoration of our products among mechanics, we initiated the journey of managing our own brand: DAYUAN.

    In the next decade, we aim to combine our manufacturing expertise with e-commerce, ensuring more consumers can afford quality automotive tools.

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Product description

ALL-IN-ONE RETHREADING KIT Whether you need to stripped inner threading or properly maintain what you've got, we've got the right tools for you! The installation tools in this helicoil kit are constructed from high-speed steel for superior handling while the inserts are heated-treated 45# steel for greater strength and longevity in place. Our set is ideal for restoring stripped or damaged internal threads as well as for performing maintenance work to protect any threads from wear and tear.

Product information

Technical Details

Manufacturer ‎Yinyuan Tools
Brand ‎DAYUAN
Parcel Dimensions ‎38.7 x 19.1 x 3.9 cm; 2.41 kg
Item model number ‎YT-99654
Manufacturer part number ‎YT-99654
Item Weight ‎2.41 kg

Additional Information

ASIN B09DS5TQ5Q
Customer Reviews
4.5 out of 5 stars 160 ratings

4.5 out of 5 stars
鶹 Rank
Date First Available Dec 11 2021

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DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2"

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DAYUAN 131PC SAE Thread Repair Kit, HSS Drill Helicoil Kit Standard, 1/4" 5/16" 3/8" 7/16" 1/2"
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Orion Motor Tech Thread Repair Kit, 131pc SAE Helicoil Repair Kit with HSS Drill Bits Thread Inserts Taps Breakoff Installation Tools, Portable Rethreading Tool Kit in 1/4" 5/16" 3/8" 7/16" 1/2" Sizes
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Price$47.50$44.99$136.50-9%$12.25
Was: $13.40		$41.49$51.99
Delivery
Get it by Monday, Jun 23
Get it by Wednesday, Jun 25
FREE Delivery
Get it by Monday, Jun 23
Get it Jul 14 - Aug 1
Get it by Monday, Jun 23
Customer ratings
4.54.5 out of 5 stars160
4.94.9 out of 5 stars19
4.44.4 out of 5 stars235
4.24.2 out of 5 stars57
4.14.1 out of 5 stars49
4.54.5 out of 5 stars739
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Customer reviews

4.5 out of 5 stars
160 global ratings

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Customers say

Customers like the quality, functionality, and appearance of the product. They mention it works well, is a handy kit, and is perfect for fixing threads in aluminium engine blocks at a lower price than competition. Customers also say it's useful in replacing a stripped thread in an aluminum motor block.

Select to learn more

QualityFunctionalityKitAppearanceThread repair
10 customers mention "Quality"8 positive2 negative

Customers are satisfied with the quality of the product. They mention it's exceptional and a great purchase.

"quality and reasonable price" Read more

"...and I'm waiting overnight to reassemble but 100% great and quality product. 👌..." Read more

"This is a really good product and worked perfectly for me to drill out 3 broken studs and holes on my exhaust manifold to exhaust flange ...." Read more

"Get what you pay for. Threads are very brittle" Read more

4 customers mention "Functionality"4 positive0 negative

Customers are satisfied with the functionality of the product. They mention the thread is 3/8in and the helicoil set works as advertised.

"...The kit worked perfectly and it only took about 10 minutes total to do all 4...." Read more

"...The drilled bit that came with the set were really very effective and had no difficulty cutting through the flange holes to make them wider...." Read more

"Works as described..." Read more

4 customers mention "Kit"4 positive0 negative

Customers are satisfied with the kit. They mention it's great, handy, and generous with the tools and helicoils.

"...Exceptional product , very generous with the tools and helicoils, so a great kit to have around the workshop." Read more

"Great kit, great value..." Read more

"Very handy kit at low price..." Read more

"Good kit..." Read more

3 customers mention "Appearance"3 positive0 negative

Customers like the appearance of the product. They mention it's a nice kit for a 12-inch file repair and easy to use.

"Looks like a nice set, it has everything in there from 1/4” to 1/2”, haven’t needed to use it yet" Read more

"Looks goid..." Read more

3 customers mention "Thread repair"3 positive0 negative

Customers like the thread repair kit. They mention it's perfect for fixing threads in aluminum engine blocks at a lower price than competition. Customers also say it's useful in replacing a stripped thread in an aluminum motor block.

"I find this kit to be perfect for fixing threads in aluminium engine blocks at a lower price than competition, but if you need it for steel or SS,..." Read more

"Useful in replacing a stripped thread in an aluminum motor block...." Read more

Great Product
5 out of 5 stars
Great Product
This is a really good product and worked perfectly for me to drill out 3 broken studs and holes on my exhaust manifold to exhaust flange . Flange stud thread were 3/8in and the helicoil set worked as advertised and saved me huge amount of time and money. The drilled bit that came with the set were really very effective and had no difficulty cutting through the flange holes to make them wider. Exceptional product , very generous with the tools and helicoils, so a great kit to have around the workshop.
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Top reviews from Canada

  • rick leismeister
    5.0 out of 5 stars fast nice and prompt
    Reviewed in Canada on October 3, 2024
    Verified Purchase
    quality and reasonable price
    Helpful
     Report
  • J Myers
    5.0 out of 5 stars Great kit, great value
    Reviewed in Canada on February 5, 2024
    Verified Purchase
    I used this kit to re and re 4 bad threads on an old Harley Davidson riser, 4 times 5/16 thread in aluminum. The kit worked perfectly and it only took about 10 minutes total to do all 4. I set them with red Locktight and I'm waiting overnight to reassemble but 100% great and quality product. 👌
    One person found this helpful
    Helpful
     Report
  • 鶹 Customer
    5.0 out of 5 stars Great Product
    Reviewed in Canada on October 27, 2023
    Verified Purchase
    This is a really good product and worked perfectly for me to drill out 3 broken studs and holes on my exhaust manifold to exhaust flange . Flange stud thread were 3/8in and the helicoil set worked as advertised and saved me huge amount of time and money. The drilled bit that came with the set were really very effective and had no difficulty cutting through the flange holes to make them wider. Exceptional product , very generous with the tools and helicoils, so a great kit to have around the workshop.
    Customer image
    鶹 Customer
    5.0 out of 5 stars
    Great Product

    Reviewed in Canada on October 27, 2023
    This is a really good product and worked perfectly for me to drill out 3 broken studs and holes on my exhaust manifold to exhaust flange . Flange stud thread were 3/8in and the helicoil set worked as advertised and saved me huge amount of time and money. The drilled bit that came with the set were really very effective and had no difficulty cutting through the flange holes to make them wider. Exceptional product , very generous with the tools and helicoils, so a great kit to have around the workshop.
    Images in this review
    Customer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer imageCustomer image
    One person found this helpful
    Helpful
     Report
  • neekamv8
    5.0 out of 5 stars as advertised
    Reviewed in Canada on August 31, 2024
    Verified Purchase
    Good quality and perfect for the job at hand..
    Helpful
     Report
  • 鶹 Customer
    4.0 out of 5 stars Everything in one place
    Reviewed in Canada on August 9, 2024
    Verified Purchase
    Looks like a nice set, it has everything in there from 1/4” to 1/2”, haven’t needed to use it yet
    Helpful
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  • Ralph dawert
    5.0 out of 5 stars Perfect
    Reviewed in Canada on August 30, 2024
    Verified Purchase
    Saves time and tons of money,
    Helpful
     Report
  • JR
    5.0 out of 5 stars First plug repair was a success.
    Reviewed in Canada on July 20, 2024
    Verified Purchase
    I used it to repair a stripped thread in my cast iron vice. The vice can rotate 180 degrees for holding pipe but I stripped the 5/16 20tpi thread. The kit does not have a 5/16 20tpi thread repair but I used the 5/16 18tpi available thread and replaced the bolt to match. A lot cheaper solution than replacing the vice.
    Helpful
     Report
  • DD
    5.0 out of 5 stars Works as described
    Reviewed in Canada on August 10, 2024
    Verified Purchase
    Good product bought metric and standard
    Helpful
     Report

Top reviews from other countries

  • vbrad511
    5.0 out of 5 stars Nice set to have
    Reviewed in the United States on June 15, 2024
    Verified Purchase
    Although I haven't had to repair many threads or use many inserts over the years, these arrived very timely, and I got right to work with them. I installed two of them in an aluminum transmission case, took maybe 10 minutes each. The drill bit cut right through the metal, as did the tap. The insert, dabbed with a bit of sealer screwed in with minimal effort. Probably my only gripe is that no drivers for the taps are included with the set, and the larger sizes take a larger driver than the ones I had on hand. Still, a very good value for the assortment of decent quality tools and inserts.
    Report
  • Super D
    5.0 out of 5 stars Can quickly works as expected
    Reviewed in the United States on March 9, 2024
    Verified Purchase
    this kit was complete and worked perfectly to repair my 7/16 threads on my transmission mount. I'm Sure the other sizes will work just as well.
    Report
  • Jojo
    5.0 out of 5 stars Great
    Reviewed in the United States on December 16, 2024
    Verified Purchase
    These come in very handy
    Report
  • Richard Clark
    5.0 out of 5 stars Good quality
    Reviewed in the United States on February 8, 2024
    Verified Purchase
    Very happy with this kit. Use it all the time I would buy again.
    Report
  • 鶹 Customer
    5.0 out of 5 stars Great Quality
    Reviewed in the United States on January 22, 2024
    Verified Purchase
    Worked great. Very impressed.
    Report