---
title: "37 degree flaring tool — Niche Verdict: Skip it (41/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/37-degree-flaring-tool"
last_updated: "2026-07-13T23:57:58.496Z"
locale: en
meta:
  description: "soft demand (-8.5% this quarter) — 37 degree flaring tool doesn't clear our bar today."
  "og:description": "soft demand (-8.5% this quarter) — 37 degree flaring tool doesn't clear our bar today."
  "og:title": "37 degree flaring tool — Niche Verdict: Skip it (41/100) | Amazon United States - Flapen"
---

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# **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 42Price 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 6% 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

## **Competition**

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%**

**Open market**

**18%**

- Performance Tool29% - DPTOOL17% - RIDGID13% - Speedway Motors10% - Mastercool6% - LainKeen6%

## **Product shelf**

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](https://m.media-amazon.com/images/I/41htoRJtdSL.jpg)**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](https://m.media-amazon.com/images/I/41JJvMNLlyL.jpg)**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](https://m.media-amazon.com/images/I/411cGPdEGKL.jpg)**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](https://m.media-amazon.com/images/I/41GT891YQ2L.jpg)**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](https://m.media-amazon.com/images/I/41ZZecbrcmL.jpg)**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](https://m.media-amazon.com/images/I/411cGPdEGKL.jpg)**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](https://m.media-amazon.com/images/I/41DjeMAML4L.jpg)**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](https://m.media-amazon.com/images/I/51VJO7Rz3ML.jpg)**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](https://m.media-amazon.com/images/I/41q5plm2zbL.jpg)**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](https://m.media-amazon.com/images/I/41GT891YQ2L.jpg)**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](https://m.media-amazon.com/images/I/411cGPdEGKL.jpg)**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](https://m.media-amazon.com/images/I/41GT891YQ2L.jpg)**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](https://m.media-amazon.com/images/I/41DjeMAML4L.jpg)**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](https://m.media-amazon.com/images/I/31qGrNheM-L.jpg)**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](https://m.media-amazon.com/images/I/41htoRJtdSL.jpg)**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 →~~**

## **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×

## **Reviews**

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%