helicoil kit
Worth a lookShows a sweet-spot price point ($39.09 avg), but strong incumbent ratings (4.5★) keeps it on the watch list.
Avg price
Incredible$39.09avg listing price — sweet spot $15–$100
Price range
Great$8.15–$69.25cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good596.22avg incumbent reviews — the moat a new listing must climb
Returns
Good2.1%return rate — above 6% kills the launch gate
Market size
Good$516K$516K/yr · 400K searches
Brand share
Okay78%top-5 brand share — brands hold most of the demand
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Conversion
Okay3.3%search→purchase rate — share of searches ending in a sale
Growth
Okay+11.1%90-day search growth — must beat 0% to launch
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
15 falling
Sellers
18
Top-5 brand share
78%
Open market
19%
- SEDY30%
- Orion Motor Tech21%
- BILITOOLS16%
- HORUSDY7%
- LEONTOOL4%
- coobeast4%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 23 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SEDY Helicoil Thread Repair Tool Kit: 320-Piece Metric SAE Heli Coil Rethreading Insert Drill Bits Spark Plug Automotive Engine Motor Stud Bolt Tap Universal Threaded Restorer Restoring Rethread
SEDY$52.724.6★288 rev
Orion Motor Tech 172pc Thread Repair Kit Metric Thread Restorer Kit with HSS Drill Bits Taps Inserts Breakoff Installation Tools Auto Rethreading Restorer Tool Kit in M5 M6 M8 M10 M12 Sizes
Orion Motor Tech$31.224.5★1,401 rev
BILITOOLS Helicoil Thread Repair Kit Metric
BILITOOLS$38.214.4★268 rev
Metric Helicoil Thread Repair Kit: 131-Piece Heli Coil HSS Drills Inserts Taps & Tools M5 M6 M8 M10 M12 Automotive Engine Spark Plug Cylinder Insertion Rethreading Tools Universal Rethread Restorer
SEDY$28.164.6★1,105 rev
HORUSDY 348-Piece Thread Repair Kit Metric & SAE Helicoil Set with HSS Drill Bits Thread Inserts Taps & Installation Tools for Damaged Thread Engine Spark Plug & Automotive Repair
HORUSDY$53.204.6★1,280 rev
Newest
by launch date
coobeast Thread Repair Kit Thread Repair Tool with HSS Drill Bit & 30pcs 304 Stainless Steel Inserts Complete Helicoil Rethreading Tool Set for Automotive Engine with Portable Carry Case M6x1.0
coobeast$11.6386 rev
coobeast 131PCS Thread Repair Kit Metric Helicoil Repair Kit with HSS Drill Bits 304 Stainless Steel Thread Insert & Rethreading Tool Set in M5 M6 M8 M10 M12 for Automotive Engine Spark Plug Repair
coobeast$29.3786 rev
HORUSDY 348-Piece Thread Repair Kit Metric & SAE Helicoil Set with HSS Drill Bits Thread Inserts Taps & Installation Tools for Damaged Thread Engine Spark Plug & Automotive Repair
HORUSDY$53.201,280 rev
ZIMISI 30PCS M6 x 1.0mm Thread Repair Insert Kit Stainless Steel Helicoil Inserts Set Compatible Hand Tool Set M6 Thread Metric Helicoil Repair Kit Assortment for Car Repairing
ZIMISI$8.1535 rev
KUNGJUER 263PCS Helicoil Thread Repair Kit Metric&SAE Thread Restorer Kit
KUNGJUER$48.6778 rev
Trending
90-day click momentum
Orion Motor Tech 344pc Thread Repair Kit SAE and Metric Thread Restorer Kit with HSS Drill Bits Taps Inserts Auto Rethreading Restorer Tool Kit in 1/4 5/16 3/8 7/16 1/2 & M5 M6 M8 M10 M12 Sizes
Orion Motor Tech$64.414.5★
TAILUG Thread Repair Kit 261-Piece HSS Drill Helicoil Repair Kit SAE & Metric 1/4 5/16 3/8 7/16 1/2 M5 M6 M8 M10 M12 with HSS Drill Threaded Inserts Screw Tap Installation and Tang Break Tool
TAILUG$69.254.5★
HORUSDY 348-Piece Thread Repair Kit Metric & SAE Helicoil Set with HSS Drill Bits Thread Inserts Taps & Installation Tools for Damaged Thread Engine Spark Plug & Automotive Repair
HORUSDY$53.204.6★
KUNGJUER 263PCS Helicoil Thread Repair Kit Metric&SAE Thread Restorer Kit
KUNGJUER$48.674.4★
JMMRRR 263PCS Thread Repair Kit HSS Drill Helicoil Kit Rethreading Tool
JMMRRR$47.964.5★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +11.1% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Awesome quality”
“much cheaper”
“Easy to use”
“Works as intended”
“And having multiple sizes really saved me in a few situations”
“Worked very well”
“Coils seem to hold well”
“was very easy to install”
“Followed directions it works perfect”
“What you need for repairs on most applications good to have”
What buyers complain about
“Cheaply made poor quality”
“One time use and breaks”
“One of the bits broke in the first try”
“Cheap, not durable, soft metal”
“This is NOT for spark plugs as stated in the title”
“waste of money”
“Only problem for me was trying to read the sizes on taps and drills”
“Cheap material”
“Waste of money”
“I cant explain how upset i am trying to fix the threads to mount a motor mount”