Mastercool 70078 — Torque Wrench Kit (10-75 Nm) with 6 Crow's Foot Adapters for R410A Fittings

Professional Torque Wrench Kit: Ensures Accurate Tightness for R410A and All Refrigerant Fittings

The Mastercool 70078 torque wrench kit is the professional solution for ensuring accurate tightness of refrigerant fittings, especially critical for R410A systems. With a torque range of 10 to 75 Nm and six crow's foot adapters (17, 22, 24, 26, 27, 29mm), this kit delivers precise torque control that prevents both under-tightening (which causes leaks) and over-tightening (which damages fittings). Supplied in a blow-moulded case for organised storage, this is the essential tool for professional refrigeration installations.

Accurate Torque Control: Prevent Leaks and Fitting Damage

The 10 to 75 Nm torque range covers all common refrigerant fitting requirements. The calibrated torque mechanism ensures you apply exactly the correct tightness — not too loose (which causes leaks) and not too tight (which damages fittings, cracks flares, or strips threads). This precision is especially critical for R410A systems, which operate at higher pressures than older refrigerants.

Why This Matters: R410A operates at approximately 60% higher pressure than R22. Fittings must be tightened to exact specifications — too loose causes leaks, too tight damages the flare or fitting. A torque wrench eliminates guesswork, ensuring leak-free connections every time.

Six Crow's Foot Adapters: Complete Coverage for Refrigerant Fittings

The kit includes six crow's foot adapters in the most common refrigerant fitting sizes:

• 17mm — Small refrigerant fittings
• 22mm — Common liquid line fittings
• 24mm — Standard suction line fittings
• 26mm — Larger suction line fittings
• 27mm — Commercial system fittings
• 29mm — Large commercial fittings

These six sizes cover virtually all residential and light commercial refrigerant fitting requirements.

Blow-Moulded Case: Organised Professional Storage

The blow-moulded case keeps the torque wrench and all six adapters organised and protected. Each component has its dedicated space, preventing loss and damage whilst providing professional presentation on service calls.

Key Features

• Torque Range: 10-75 Nm — Covers all refrigerant fitting requirements
• 6 Crow's Foot Adapters — 17, 22, 24, 26, 27, 29mm
• Calibrated Mechanism — Accurate, repeatable torque
• R410A Critical — Essential for high-pressure refrigerants
• Blow-Moulded Case — Organised, protected storage
• Professional Quality — Built for daily use
• Prevents Leaks — Correct tightness every time
• Prevents Damage — No over-tightening

Technical Specifications

• Model: 70078
• Type: Torque wrench with crow's foot adapters
• Torque Range: 10-75 Nm
• Adapter Sizes: 17, 22, 24, 26, 27, 29mm
• Quantity: 6 adapters included
• Case: Blow-moulded protective case
• Application: Refrigerant fitting installation
• Critical For: R410A and all refrigerant systems

Kit Includes

• 1 x Torque Wrench (10-75 Nm range)
• 1 x 17mm Crow's Foot Adapter
• 1 x 22mm Crow's Foot Adapter
• 1 x 24mm Crow's Foot Adapter
• 1 x 26mm Crow's Foot Adapter
• 1 x 27mm Crow's Foot Adapter
• 1 x 29mm Crow's Foot Adapter
• 1 x Blow-Moulded Case

Optional Additional Adapter Sizes

Additional crow's foot adapters are available separately for sizes not included in the standard kit:

• 70078-19: 19mm adapter
• 70078-25: 25mm adapter
• 70078-28: 28mm adapter
• 70078-32: 32mm adapter

Perfect For

• HVAC technicians installing R410A systems
• Refrigeration installations requiring precise torque
• Any refrigerant system installation or service
• Professional installations meeting manufacturer specifications
• Mobile service operations requiring organised tools
• Preventing callbacks from leaking fittings

Why Torque Wrenches Are Essential for R410A

R410A Operates at Higher Pressure:

• Approximately 60% higher pressure than R22
• Requires precise fitting tightness
• Under-tightening causes immediate leaks
• Over-tightening damages flares and fittings
• Manufacturer specifications must be met

Without Torque Wrench:

• Guesswork — "feels tight enough"
• Inconsistent tightness
• Risk of leaks from under-tightening
• Risk of damage from over-tightening
• Callbacks and warranty issues

With Torque Wrench (70078):

• Precise torque to manufacturer specifications
• Consistent, repeatable tightness
• No leaks from proper tightness
• No damage from over-tightening
• Professional, reliable installations

How to Use the 70078 Torque Wrench

1. Select Adapter — Choose crow's foot adapter matching fitting size
2. Attach Adapter — Install adapter on torque wrench drive
3. Set Torque — Adjust wrench to manufacturer's specified torque
4. Position on Fitting — Place adapter on refrigerant fitting nut
5. Tighten Smoothly — Apply steady pressure until wrench clicks
6. Stop at Click — Wrench clicks when correct torque is reached
7. Verify — Fitting is now tightened to exact specification

Typical Refrigerant Fitting Torque Specifications

Note: Always follow manufacturer specifications. These are typical values:

• 1/4\" Flare Fittings — 10-15 Nm
• 3/8\" Flare Fittings — 20-25 Nm
• 1/2\" Flare Fittings — 30-40 Nm
• 5/8\" Flare Fittings — 45-55 Nm
• 3/4\" Flare Fittings — 60-70 Nm

Tips for Professional Torque Wrench Use

• Check Calibration — Verify wrench calibration periodically
• Smooth Operation — Apply steady, smooth pressure
• Stop at Click — Don't continue tightening after click
• Proper Adapter — Use correct size adapter for fitting
• Clean Fittings — Remove dirt and oil before tightening
• Follow Specs — Use manufacturer's torque specifications
• Store Properly — Return to case after use

Why Choose the Mastercool 70078?

• Complete Kit — Wrench plus six essential adapters
• Correct Range — 10-75 Nm covers all refrigerant fittings
• R410A Essential — Critical for high-pressure refrigerants
• Professional Quality — Calibrated, accurate, repeatable
• Organised Storage — Blow-moulded case keeps everything together
• Prevents Callbacks — Correct tightness eliminates leaks
• Expandable — Additional adapters available separately

Common Mistakes to Avoid

• Guessing Tightness — Always use torque wrench for refrigerant fittings
• Wrong Adapter Size — Must match fitting size exactly
• Continuing After Click — Stop immediately when wrench clicks
• Not Following Specs — Use manufacturer's torque specifications
• Dirty Fittings — Clean before tightening for accurate torque
• Poor Storage — Store in case to maintain calibration

R410A Installation Requirements

R410A systems require professional installation practices:

• Torque Wrench Required — Manufacturer specifications must be met
• Proper Flaring — Use quality flaring tools
• Clean Connections — No contamination
• Leak Testing — Verify all connections
• Proper Evacuation — Deep vacuum required
• Correct Charging — Precise refrigerant charge

The Essential Tool for Professional Refrigerant Installations

The Mastercool 70078 torque wrench kit is the essential tool for professional refrigerant installations, especially critical for R410A systems. With its 10-75 Nm torque range, six crow's foot adapters (17, 22, 24, 26, 27, 29mm), and organised blow-moulded case, this kit ensures accurate fitting tightness that prevents leaks and damage. When manufacturer specifications must be met and callbacks must be avoided, the 70078 is the professional solution.

10-75 Nm torque range. Six adapters included. Essential for R410A. Professional refrigerant fitting installation.