---
product_id: 15798772
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: "B/.278"
currency: PAB
in_stock: true
reviews_count: 13
url: https://www.desertcart.com.pa/products/15798772-mastercool-71098-37-flaring-and-double-flaring-adapter-set-hydraulic
store_origin: PA
region: Panama
---

# Hydraulic tool compatible 5 die sets & adapters (3/16”–1/2”) Hardened steel 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:** B/.278
**Availability:** ✅ In Stock

## Summary

> 🔩 Master every flare with precision and power — don’t get left behind!

## 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?** B/.278 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/15798772-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 steel to withstand demanding automotive, racing, hydraulic, and HVAC environments.
- • **Precision Meets Power:** Engineered for flawless 37° single & double flares that meet SAE J514 / ISO 8434-2 standards.
- • **All-in-One Size Coverage:** Complete kit with 5 die sets and adapters covering 3/16” to 1/2” tubing for versatile applications.
- • **Trusted Legacy & Support:** Backed by 40+ years of U.S.-based expertise and customer service for peace of mind on every job.
- • **Seamless Hydraulic Integration:** Optimized for Mastercool’s hydraulic flaring system delivering fast, leak-free, professional-grade results.

## Overview

The Mastercool 71098 37° Flaring & Double Flaring Adapter Set is a professional-grade hydraulic tool accessory designed for precision flaring of 3/16” to 1/2” tubing. Compatible with Mastercool’s hydraulic flaring system, it features hardened steel construction, meets SAE and ISO standards, and supports a wide range of applications from automotive racing to HVAC. This complete kit ensures leak-free, durable connections backed by decades of trusted U.S.-based support.

## 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: 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>
Review: Itemized dies parts# with details about kit - I bought this kit to add to my 45 degree kit so I can also do 37 degree flares but I noticed you only need square dies and the 37 degree cone the silver plunger for all the sizes is the same 45 degrees plunger die that comes in any 45 degree set The silver plungers are 45 degrees (as shown in picture) The cone is 37 degree And all the square dies are 37 degrees (as shown in picture) So if you already have a 45 degree set you only need the 37 degree cone and the 37 degree square dies for whatever size you plan to do. Picture with all part numbers This kit fits any hand hydraulic. The kit is priced decently Quick and easy to make 37 degree flares It functions as any 45° set, just for 37 degrees Fast and easy to use

## Features

- ✔️ COMPLETE 37° FLARING & DOUBLE FLARING KIT – Includes 37° cone, 5 die sets, and 5 matching adapters (3/16”, 1/4”, 5/16”, 3/8”, 1/2”)
- ✔️ HYDRAULIC TOOL COMPATIBLE – Engineered to work with Mastercool’s hydraulic flaring system for fast, precise results
- ✔️ WIDE-RANGE APPLICATIONS – Supports hydraulic systems, aerospace/AN fuel & oil lines, racing performance plumbing, and HVAC tubing
- ✔️ PROFESSIONAL-GRADE DURABILITY – Hardened steel construction built for long service life under demanding use
- ✔️ RELIABLE, LEAK-FREE SEALS – Produces accurate 37° single or double flares meeting SAE J514 / ISO 8434-2 standar
- ✔️ U.S.-BASED SUPPORT – Backed by Mastercool’s professional team with decades of experience in automotive and HVAC tools

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002YKNXKS |
| Best Sellers Rank | #84,715 in Automotive ( See Top 100 in Automotive ) #41 in Brake Repair Brake Flaring Tools |
| Brand Name | Mastercool |
| Color | Silver |
| Connector Type | Flare |
| Customer Reviews | 4.6 4.6 out of 5 stars (214) |
| Exterior Finish | Aluminum |
| 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 | 12.75 x 3.75 x 3.25 inches |
| Item Type Name | 37 Degree Hydraulic Flaring Tool Adapter Set |
| Item Weight | 2 Pounds |
| Manufacturer | Mastercool |
| Manufacturer Warranty Description | 1 year |
| Material Type | Alloy Steel |
| Model Number | 71098 |
| Number of Pieces | 37 |
| Size | 37 deg. Flaring & Double Flaring Adapter Set |
| Thread Size | 3/16", 1/4" |
| Thread Type | Metric Tapered |
| UPC | 700376710984 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Mastercool
- **Color:** Silver
- **Connector Type:** Flare
- **Exterior Finish:** Aluminum
- **Item Weight:** 2 Pounds
- **Item dimensions L x W x H:** 12.75 x 3.75 x 3.25 inches
- **Material:** Alloy Steel
- **Size:** 37 deg. Flaring & Double Flaring Adapter Set
- **Thread Size:** 3/16", 1/4"
- **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

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

### ⭐⭐⭐⭐⭐ Itemized dies parts# with details about kit
*by D***O on April 15, 2025*

I bought this kit to add to my 45 degree kit so I can also do 37 degree flares but I noticed you only need square dies and the 37 degree cone the silver plunger for all the sizes is the same 45 degrees plunger die that comes in any 45 degree set The silver plungers are 45 degrees (as shown in picture) The cone is 37 degree And all the square dies are 37 degrees (as shown in picture) So if you already have a 45 degree set you only need the 37 degree cone and the 37 degree square dies for whatever size you plan to do. Picture with all part numbers This kit fits any hand hydraulic. The kit is priced decently Quick and easy to make 37 degree flares It functions as any 45° set, just for 37 degrees Fast and easy to use

### ⭐⭐⭐⭐⭐ Great tools!
*by P***T on May 18, 2023*

Great tools, I just wish there were slots provided in the case of the complete tool set , for these to be stored in. If not, then for the price there should have been a comparable blow-molded case for the extra dies. C'mon guys, a little common sense goes a long way here. Great tools, but you let us down on the storage aspects. Gotta protect my pricey tools! Got it?

## Frequently Bought Together

- Mastercool (71098 Silver 37 Degree Hydraulic Flaring Tool Adapter Set
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- 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 Panama*
*Store origin: PA*
*Last updated: 2026-04-25*