---
product_id: 293963183
title: "Mastercool 71098 37° Flaring & Double Flaring Adapter Set – Hydraulic Tool Compatible – For Automotive, Racing, Hydraulic & HVAC Applications (3/16” to 1/2”)"
brand: "mastercool"
price: "49287 kr"
currency: ISK
in_stock: true
reviews_count: 5
url: https://www.desertcart.is/products/293963183-mastercool-71098-37-flaring-and-double-flaring-adapter-set-hydraulic
store_origin: IS
region: Iceland
---

# 5 size adapters 3/16"-1/2" 37° precision flares & double flares Hardened steel for durability Mastercool 71098 37° Flaring & Double Flaring Adapter Set – Hydraulic Tool Compatible – For Automotive, Racing, Hydraulic & HVAC Applications (3/16” to 1/2”)

**Brand:** mastercool
**Price:** 49287 kr
**Availability:** ✅ In Stock

## Summary

> 🛠️ Master every flare, own every connection — precision that professionals trust!

## Quick Answers

- **What is this?** Mastercool 71098 37° Flaring & Double Flaring Adapter Set – Hydraulic Tool Compatible – For Automotive, Racing, Hydraulic & HVAC Applications (3/16” to 1/2”) by mastercool
- **How much does it cost?** 49287 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/293963183-mastercool-71098-37-flaring-and-double-flaring-adapter-set-hydraulic)

## Best For

- mastercool enthusiasts

## Why This Product

- Trusted mastercool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from hardened alloy steel ensuring long-lasting durability under heavy use.
- • **Precision 37° Flares:** Delivers leak-proof, aerospace-grade 37° and double flares for professional-grade connections.
- • **Universal Size Coverage:** Covers all essential tubing sizes from 3/16" to 1/2" for versatile applications.
- • **Seamless Tool Compatibility:** Optimized for Mastercool hydraulic flaring tools, streamlining your workflow with perfect fit and function.
- • **Industry Standard Compliance:** Meets SAE J514 and ISO 8434-2 standards for trusted performance across automotive, HVAC, and hydraulic systems.

## Overview

The Mastercool 71098 Adapter Set is a premium 37° flaring and double flaring kit designed for professionals in automotive, racing, hydraulic, aerospace, and HVAC fields. Featuring 37 pieces including adapters and dies for tubing sizes from 3/16" to 1/2", it ensures precise, leak-free connections with hardened alloy steel durability and compliance with SAE and ISO standards. Compatible with Mastercool hydraulic flaring tools, this set is engineered for accuracy, longevity, and versatile industrial use.

## Description

OverviewThe Mastercool 71098 37° Flaring & Double Flaring Adapter Set provides the precision and flexibility professionals demand. Designed to work seamlessly with Mastercool’s hydraulic flaring tool, this kit covers all major sizes from 3/16” to 1/2”.ApplicationsThe 37° flare (AN/JIC standard) is widely used in hydraulic systems, aerospace fuel and oil lines, marine engines, motorsports plumbing, HVAC service, and general industrial machinery. Whether you’re working on construction equipment, aircraft fuel lines, or performance automotive systems, these adapters and dies provide accurate, leak-free connections.Key FeaturesFull set of adapters and dies for 3/16” to 1/2” tubingProduces precise 37° flares and double flaresMeets SAE J514 / ISO 8434-2 standardsHardened steel for durability and long lifeCompatible with Mastercool hydraulic flaring toolWhy MastercoolFor more than 40 years, Mastercool has been a trusted name in the automotive and HVAC industries. Our tools are built for professionals who demand accuracy, durability, and strong U.S.-based customer support.Technical SpecificationsKit Includes: 5 double flare die sets, 5 adapters, 37° coneSizes: 3/16”, 1/4”, 5/16”, 3/8”, 1/2”Standards: SAE J514, ISO 8434-2Material: Hardened steelApplications: Automotive (performance/racing), hydraulics, aerospace/AN fuel & oil lines, HVAC tubing

Review: Slow shipping great tools. - Took awhile to get here but great tools from mastercool. I stripped the bubble (clamp) dies trying to do 3/8 stainless. It was .49 wall and way too thick. Should be able to handle .28 stainless. The does still work but leave marks on tubing now. Guess we’ll see how there warranty is.
Review: Good Tool Well Made - Did not use this as of yet but if it is similar to the other Mastercool Flaring tools I expect a good easy flare>

## Features

- Best Quality
- Mastercool

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002YKNXKS |
| Brand | Mastercool |
| Brand Name | Mastercool |
| Colour | Silver |
| Connector Type | Adapter |
| Customer Reviews | 4.6 out of 5 stars 206 Reviews |
| Exterior Finish | Silver |
| Global Trade Identification Number | 00700376710984 |
| Included Components | 37˚ double flaring adapter and die sets for 3/16, 1/4, 5/16, 3/8, and 1/2” and cone |
| Item Dimensions | 32.4 x 9.5 x 8.3 Centimeters |
| Item Type Name | 37 Degree Hydraulic Flaring Tool Adapter Set |
| Item Weight | 2 Pounds |
| Item dimensions L x W x H | 32.4 x 9.5 x 8.3 Centimeters |
| Manufacturer | Mastercool |
| Manufacturer Part Number | 71098 |
| Manufacturer Warranty Description | No Warranty |
| Material | Alloy Steel |
| Material Type | Alloy Steel |
| Model Number | 71098 |
| Number of Pieces | 37 |
| Set Name | Mastercool 37° Flaring & Double Flaring Adapter Set |
| Size | 3/16", 1/4", 5/16", 3/8", 1/2" |
| Thread Size | 3/16, 1/4, 5/16, 3/8, 1/2 |
| Thread Type | Metric Tapered |
| UPC | 700376710984 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Mastercool
- **Colour:** Silver
- **Connector Type:** Adapter
- **Exterior Finish:** Silver
- **Item Weight:** 2 Pounds
- **Item dimensions L x W x H:** 32.4 x 9.5 x 8.3 Centimeters
- **Material:** Alloy Steel
- **Size:** 3/16", 1/4", 5/16", 3/8", 1/2"
- **Thread Size:** 3/16, 1/4, 5/16, 3/8, 1/2
- **Thread Type:** Metric Tapered

## Images

![Mastercool 71098 37° Flaring & Double Flaring Adapter Set – Hydraulic Tool Compatible – For Automotive, Racing, Hydraulic & HVAC Applications (3/16” to 1/2”) - Image 1](https://m.media-amazon.com/images/I/81NLoeBxLTL.jpg)
![Mastercool 71098 37° Flaring & Double Flaring Adapter Set – Hydraulic Tool Compatible – For Automotive, Racing, Hydraulic & HVAC Applications (3/16” to 1/2”) - Image 2](https://m.media-amazon.com/images/I/81Hz0f8giJL.jpg)
![Mastercool 71098 37° Flaring & Double Flaring Adapter Set – Hydraulic Tool Compatible – For Automotive, Racing, Hydraulic & HVAC Applications (3/16” to 1/2”) - Image 3](https://m.media-amazon.com/images/I/81GJMxC-aQL.jpg)
![Mastercool 71098 37° Flaring & Double Flaring Adapter Set – Hydraulic Tool Compatible – For Automotive, Racing, Hydraulic & HVAC Applications (3/16” to 1/2”) - Image 4](https://m.media-amazon.com/images/I/81jb0+PRu1L.jpg)
![Mastercool 71098 37° Flaring & Double Flaring Adapter Set – Hydraulic Tool Compatible – For Automotive, Racing, Hydraulic & HVAC Applications (3/16” to 1/2”) - Image 5](https://m.media-amazon.com/images/I/9139bq0BkQL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Slow shipping great tools.
*by G***N on 4 May 2020*

Took awhile to get here but great tools from mastercool. I stripped the bubble (clamp) dies trying to do 3/8 stainless. It was .49 wall and way too thick. Should be able to handle .28 stainless. The does still work but leave marks on tubing now. Guess we’ll see how there warranty is.

### ⭐⭐⭐⭐⭐ Good Tool Well Made
*by J***S on 18 February 2026*

Did not use this as of yet but if it is similar to the other Mastercool Flaring tools I expect a good easy flare>

### ⭐⭐⭐⭐⭐ Amazing Amazon!
*by G***E on 13 November 2022*

The Mastercool kit is an addition to my existing Mastercool tools - brilliant tools to give a perfect finished result. The exceptional bit is that Amazon Prime facilitated getting this kit from Texas to Melbourne, Australia in four days and at a VERY good price! Amazon Prime has opened up a trustworthy international buying avenue for me I did not know existed. Well done.

## Frequently Bought Together

- Mastercool (71098 Silver 37 Degree Hydraulic Flaring Tool Adapter Set
- Mastercool 72485-PRC Universal Hydraulic Flaring Tool – 45° Double & Single Flares, Push Connect, GM Fuel Line, Brake Line & GM Transmission Cooling – Includes Hydraulic Ram & Mini Tube Cutter
- 4LIFETIMELINES Rimming & Deburring Tool for 3/16" to 1/2" Tubing, Exceptionally Versatile Tool, Achieve Optimal Tubing Flaring, Dubur Tubing Efficiently

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-05-12*