What are metric flare nut wrenches used for?

Metric flare nut wrenches, also known as line wrenches, are specifically designed for loosening and tightening fittings on hydraulic lines, brake lines, fuel lines, and other tubing systems. Their unique design, with a box-end opening that grips multiple sides of the nut, helps prevent rounding and damage to the fitting, which is common with open-end wrenches.

What sizes are typically included in a metric flare nut wrench set?

Metric flare nut wrench sets typically include a range of common sizes to accommodate various applications. You'll often find sets containing sizes from 8mm to 19mm, covering the most frequently encountered fittings in automotive, industrial, and plumbing systems. Some sets may include larger or smaller sizes depending on the intended use.

Which brands of metric flare nut wrench sets does ToolSource carry?

ToolSource offers a wide selection of metric flare nut wrench sets from leading brands in the industry. You can find sets from GearWrench, SK Hand Tool, Stanley Proto Industrial Tools, Genius Tools, KD Tools, VIM Tools, Astro Pneumatic, and Armstrong, among others. With 36 different metric flare nut wrench sets available, you're sure to find the right set for your needs.

What should I look for when choosing a metric flare nut wrench set?

When selecting a metric flare nut wrench set, consider the quality of the steel used, the precision of the wrench openings, and the overall durability of the set. Look for sets made from high-quality alloy steel for strength and longevity. Also, consider the number of wrenches included and whether the sizes meet your specific application requirements.

Are there different types of metric flare nut wrench sets available?

Yes, metric flare nut wrench sets are available in different configurations. You can find standard sets with a fixed head, as well as sets with ratcheting mechanisms for faster and easier use in tight spaces. Some sets also feature angled heads for improved access to hard-to-reach fittings.

How do I properly use a metric flare nut wrench to avoid damaging fittings?

To avoid damaging fittings, ensure the wrench is fully seated on the flare nut before applying force. Apply steady, even pressure and avoid jerking or excessive force. If the fitting is particularly stubborn, consider using a penetrating oil to help loosen it before attempting to turn it with the wrench.

What is the advantage of using a flare nut wrench over a regular open-end wrench?

Flare nut wrenches provide a more secure grip on fittings compared to open-end wrenches. The enclosed design of the flare nut wrench distributes force over more of the nut's surface, reducing the risk of rounding or damaging the fitting, especially when dealing with corroded or tightly fastened connections.

Are metric flare nut wrenches only for automotive applications?

While metric flare nut wrenches are commonly used in automotive repair for brake lines and fuel lines, their applications extend beyond the automotive industry. They are also valuable tools for working on hydraulic systems, refrigeration lines, and other tubing systems in industrial, plumbing, and HVAC settings.

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Long Pattern Metric Flare Nut Wrench Set - 6-Pc - GearWrench

Name: Long Pattern Metric Flare Nut Wrench Set - 6-Pc
Brand: GearWrench
SKU: 99637
Price: 119.69 USD
Availability: InStock

Part #: 81906

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Designed for professional technicians and mechanics, the GearWrench 81906 Long Pattern Metric Flare Nut Wrench Set provides the precision and durability required for critical automotive and industrial applications. This 6-piece set is engineered to effectively loosen and tighten hex nuts, particularly those found on tubing such as fuel, brake, and hydraulic lines, where preventing damage to delicate fittings is paramount. Crafted from robust alloy steel with a full polish chrome finish, these wrenches are built for sustained performance in demanding environments.

Key Features

Comprehensive Metric Sizing: Includes six essential metric flare nut wrenches: 9 x 11mm, 10 x 12mm, 13 x 14mm, 15 x 17mm, 16 x 18mm, and 19 x 21mm.
Enhanced Leverage and Reach: The long pattern design provides superior leverage and extended reach, crucial for accessing fasteners in confined spaces.
Optimized Fastener Engagement: Hex-shaped heads offer increased contact points on fasteners, reducing the risk of rounding off hex nuts, especially those made from softer materials.
Improved Accessibility: Features 15° offset wrench heads, allowing for better access to hard-to-reach fittings and nuts.
Professional-Grade Durability: Manufactured from high-strength alloy steel for exceptional strength and extended tool life.
Corrosion Resistance: A bright, full polish chrome finish not only ensures a professional appearance but also resists corrosion and wipes clean easily.
Quick Size Identification: Sizes are clearly stamped on both sides of the wrench beam for fast and efficient selection.
Organized Storage: The set comes packaged in a blow mold tray for convenient organization and secure storage within a toolbox.

Applications

This GearWrench flare nut wrench set is an indispensable addition to any professional's toolkit, excelling in various critical applications:

Automotive Repair: Ideal for working on vehicle brake lines, fuel lines, hydraulic lines, and other sensitive fluid transfer systems where a secure, non-damaging grip is essential.
Plumbing Installations: Provides a secure grip for tightening and loosening flare nuts in plumbing systems, ensuring leak-proof connections for pipes and fixtures.
HVAC Systems: Crucial for servicing and installing refrigeration and air-conditioning units, particularly on delicate refrigerant lines.
Industrial Maintenance: Suitable for precision work on machinery and industrial equipment where hex nuts and fittings require careful handling to prevent damage.