---
title: "37 Degree Flaring Tool — $112K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/37-degree-flaring-tool"
last_updated: "2026-08-09T10:37:07.799Z"
locale: en
meta:
description: "Niche score 41/100 · $112K/yr market · 28K searches/yr · $107.24 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $112K/yr market · 28K searches/yr · $107.24 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "37 Degree Flaring Tool — $112K/yr Amazon US Niche (2026) - Flapen"
---
# **37 degree flaring tool**
**Skip it**
Soft demand (-8.5% this quarter) — this niche doesn't clear our bar today.
Market size 27Growth 21Conversion 47Competition 33Returns 39Price range 24Avg price 73Brand share 48Review moat 95Quality gap 60
**Review moat**
**Great****107.65**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Good****$107.24**
avg listing price — sweet spot $15–$100
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****76%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Okay****3.8%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Okay****3.9%**
return rate — above 5% kills the launch gate
**Competition**
**Okay****65%**
top-5 click share — leaders hold, buyers still browse
**Market size**
**Okay****$112K**
$112K/yr · 28K searches
**Price range**
**Bad****$21.87–$348.58**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-8.5%**
90-day search growth — must beat 0% to launch
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, 37 degree flaring tool is a $112K/yr Amazon United States market (28K searches/yr). The top 5 brands hold 76% of demand. Verdict: Skip it — 41/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **37 degree flaring tool market data**
- **Units sold / yr**
- **750–1K**
- avg 0–100/product
- **Revenue / yr**
- **$80K–$107K**
- units × avg price
- **Conversion rate**
- **3.8%**
- **Avg BSR**
- **#124**
- **Page quality**
- **0%**
- **Prime**
- **82%**
- **Sponsored**
- **88%**
- **Out of stock**
- **3.7%**
- **Avg brand age**
- **64 months**
- **Avg seller age**
- **178 days**
## **Competition & brand share**
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **▼falling
**Sellers**
**72**
**Top-5 brand share**
**76%**
Top 20: 100%
**Top-5 click share**
**65%**
Top 20: 100%
**Open market**
**18%**
- Performance Tool29% - DPTOOL17% - RIDGID13% - Speedway Motors10% - Mastercool6% - LainKeen6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -8.5% search growth over the last 90 days.
700500Spike '24Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/automotive/37-degree-flaring-tool/trend)
## **Top 37 degree flaring tool products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$11K20%$22K30%$34K40%$45K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 17 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Performance Tool W80671 37 Degree Flaring Tool For AN and JIC Fittings Silver**Performance Tool**$22.38**3.4★319 rev](https://www.amazon.com/dp/B004C18U00) [2**RIDGID 41162 377 Precision Non-Ratcheting Pipe Flaring Tool Flaring Tool for 37-degree SAE Flares**RIDGID**$151.42**4.5★261 rev](https://www.amazon.com/dp/B001HWNS40) [3**DPTOOL Brake Line Flaring Tool Kit 37 Degree Single Double and Bubble Flares Brake Line and Tubing Flaring Tool for 3/16 1/4 5/16 3/8 and 4.75mm Tubing Brake Flare Tool for Steel Metal Tube**DPTOOL**$73.49**4.5★178 rev](https://www.amazon.com/dp/B0G92F3NC4) [4**DPTOOL Brake Line Flaring Tool Kit 45 and 37 Degree Single Double and Bubble Flares Brake Line and Tubing Flaring Tool for 3/16 1/4 5/16 3/8 and 4.75mm Tubing**DPTOOL**$126.34**4.5★178 rev](https://www.amazon.com/dp/B0F7KN6MQD) [5**LainKeen Brake Line Flaring Tool Kit for 45 and 37 Degree Single Double and Bubble Flares Brake Line and Tubing Flaring Tool for 3/16 1/4 5/16 3/8 Tubes**LainKeen**$114.11**4.5★102 rev](https://www.amazon.com/dp/B0BBTFTGZ9)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**DPTOOL Brake Line Flaring Tool Kit 37 Degree Single Double and Bubble Flares Brake Line and Tubing Flaring Tool for 3/16 1/4 5/16 3/8 and 4.75mm Tubing Brake Flare Tool for Steel Metal Tube**DPTOOL**$73.49**178 rev6mo ago](https://www.amazon.com/dp/B0G92F3NC4) [**KJE 45 & 37 Degree Brake Line Flaring Tool Kit Single Bubble Double Brake Flare Tool Kit Profession Brake Line and Tubing Flaring Tool for 3/16 1/4 5/16 3/8 Tubes**KJE**$106.10**27 rev8mo ago](https://www.amazon.com/dp/B0FXWSG9ZF) [**SEEKSELF Professional Brake Line Flaring Tool Kit for 45 & 37 Degree Single Double and Bubble Flares 3/16 1/4 5/16 3/8 and 4.75mm Steel Copper Metal Tubing**SEEKSELF**$129.48**39 rev11mo ago](https://www.amazon.com/dp/B0FJ7DHVHS) [**easchwork Professional Brake Line Flaring Tool Kit 45 & 37 Degree Single Bubble Double Flare Compatible 3/16 1/4 5/16 3/8 Tubes**easchwork**$115.04**11 rev1y ago](https://www.amazon.com/dp/B0FCM4X7GJ) [**DPTOOL Brake Line Flaring Tool Kit 45 and 37 Degree Single Double and Bubble Flares Brake Line and Tubing Flaring Tool for 3/16 1/4 5/16 3/8 and 4.75mm Tubing**DPTOOL**$126.34**178 rev1y ago](https://www.amazon.com/dp/B0F7KN6MQD)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**DPTOOL Brake Line Flaring Tool Kit 37 Degree Single Double and Bubble Flares Brake Line and Tubing Flaring Tool for 3/16 1/4 5/16 3/8 and 4.75mm Tubing Brake Flare Tool for Steel Metal Tube**DPTOOL**$73.49**4.5★**▲ 229%**](https://www.amazon.com/dp/B0G92F3NC4) [**DPTOOL Brake Line Flaring Tool Kit 45 and 37 Degree Single Double and Bubble Flares Brake Line and Tubing Flaring Tool for 3/16 1/4 5/16 3/8 and 4.75mm Tubing**DPTOOL**$126.34**4.5★**▲ 54%**](https://www.amazon.com/dp/B0F7KN6MQD) [**KJE 45 & 37 Degree Brake Line Flaring Tool Kit Single Bubble Double Brake Flare Tool Kit Profession Brake Line and Tubing Flaring Tool for 3/16 1/4 5/16 3/8 Tubes**KJE**$106.10**4.4★**▲ 45%**](https://www.amazon.com/dp/B0FXWSG9ZF) [**Deluxe 37 Degree Mild and Stainless Brake Line and Fuel Line Flaring Tool for AN and JIC Fittings Creates Precise Single Flares on Multiple Tubing Sizes and Materials**Speedway Motors**$117.10**5.0★**▲ 44%**](https://www.amazon.com/dp/B0F6SVPKBY) [**Performance Tool W80671 37 Degree Flaring Tool For AN and JIC Fittings Silver**Performance Tool**$22.38**3.4★**▲ 26%**](https://www.amazon.com/dp/B004C18U00)
**~~View all trending →~~**
## **What buyers say about 37 degree flaring tool**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**23%
*“Decent DIY Quality”*
**Value For Money**12%
*“Worth the investment”*
**Efficiency**12%
*“Works well,”*
**Ease Of Use**11%
*“Easy to Use”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Correct Contents**5%
*“I went and got a better one from a local auto parts store and had zero issues making the parts I needed”*
**Size-Overall**5%
*“Works great for AN fittings”*
**Portability**3%
*“I like the little carry case to keeps it together instead of getting scattered around garage”*
**Assembly/Installation**3%
*“Very easy to set up and use”*
**Fuel Efficiency**3%
*“Worked fine to make fuel”*
### **What buyers complain about **
**Quality-Overall**18%
*“Junk”*
**Rusts/Corrodes**13%
*“The cherry on top is the line cutter came with rust on it”*
**Instructions/User Manual/Troubleshooting**9%
*“Instructions are poorly spelled out”*
**Functionality-Overall**8%
*“Product doesnt work”*
**Value For Money**8%
*“But right now it's a waste of time and money”*
**Ease Of Use**7%
*“I just wasted an hour of my life trying to make one decent flare with this tool”*
**Design-Overall**7%
*“Its main issue is poorly machined flare and vice surfaces,”*
**Size-Overall**4%
*“wont fit in tight areas”*
**Measurement/Reading Accuracy**3%
*“What you have here is a very imprecise tool that you need to work on a precision part”*
**Durability**3%
*“wobble on the first use”*
### **Top return reasons **
**Functionality-Overall**18%
**Size-Overall**15%
**Defective Material/Parts**15%
**Quality-Overall**7%
**Mechanism Issues**6%
**Product Condition**5%
**Advertised Vs Actual Product**5%
**Compatibility-Overall**4%
**Grip**4%
**Value For Money**4%
## **Common questions**
- **Is 37 degree flaring tool profitable to sell on Amazon United States?**
- The niche generates $112K/yr across 17 tracked products. 2 of 3 products launched in the last 360 days are still selling. 90-day search growth is -8.5%. Flapen's verdict: Skip it (41/100).
- **How competitive is the 37 degree flaring tool niche?**
- 12 brands and 72 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 76% of demand.
- **What do buyers complain about in 37 degree flaring tool?**
- Top complaints mined from reviews: Quality-Overall, Rusts/Corrodes, Instructions/User Manual/Troubleshooting. The return rate is 3.9%.
- **When does demand for 37 degree flaring tool peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the 37 degree flaring tool niche?**
- Listings span $21.87–$348.58; the average listing price is $107.24 (sweet spot $15–$100). The average incumbent carries 108 reviews — the moat a new listing must climb.
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