GK-Tools Torque Wrench Kit PRO - Set of 6 Open-End Wrenches 17-22-24-26-27-29 mm, 1/2" Ratchet - Adjustable Torque from 0 to 80 Nm

The GK-Tools Torque Wrench Kit PRO is the complete professional tool set for refrigeration technicians and HVAC/R installers, engineered to ensure controlled, code-compliant tightening of flare nuts and connections. Proper torque application is critical to guaranteeing leak-free joint integrity and preventing micro-cracking or refrigerant escapes—a crucial requirement for high-pressure refrigerants (R410A) and flammable alternatives (R32, R290, R600a).

Micrometric torque adjustment covers an operating range from 0 to 80 Nm, encompassing the full tightening spectrum required for copper lines from 1/4" to 5/8". The internal click-stop mechanism provides distinct tactile and acoustic feedback once target torque is reached, preventing overtightening and flare deformation.

Main Features

Wide 0 – 80 Nm Range: Extended adjustment span featuring a lower locking collar to prevent accidental setting drift during operation.
6 Interchangeable Open-End Heads: Standardized sizes in 17, 22, 24, 26, 27, and 29 mm, fully compatible with brass flare nuts across split units, VRF/VRV systems, and chiller packages.
1/2" Reversible Ratchet Included: Interchangeable 1/2" square drive ratchet head turns the torque handle into a versatile tool for standard socket hardware, brackets, and equipment mounting.
Clear Click Mechanism: Calibrated mechanical release delivers a perceptible click and sensory break for repeatable, high-precision tightening.
High-Strength Materials: Heavy-duty forged alloy steel construction and inserts engineered for intensive field use, offering outstanding wear and corrosion resistance.
Professional Molded Case: Dedicated impact-resistant hard carry case protects calibration integrity and keeps all inserts organized on service vehicles and job sites.

Technical Specifications

Parameter	Detail / Value
Product name	GK-Tools Torque Wrench Kit PRO
Type	Mechanical click-type torque wrench with interchangeable heads
Torque adjustment range	0 – 80 Nm
Included open-end inserts	17 mm, 22 mm, 24 mm, 26 mm, 27 mm, 29 mm
Included ratchet insert	1/2" square drive, reversible
Flare nut compatibility	Nominal copper pipe outer diameters from 1/4" to 5/8"
Adjustment lock	Integrated locking ring on handle
Case	Custom blow-molded impact-resistant hard case

Set Contents

1 PRO adjustable torque wrench handle (0–80 Nm)
6 Interchangeable open-end inserts (17 – 22 – 24 – 26 – 27 – 29 mm)
1 Reversible 1/2" square drive ratchet insert
1 Rigid storage and transport case

Use and Maintenance Notes

Storage recommendation: To safeguard the internal spring tension and calibration accuracy over time, always reset the torque adjustment to the lowest setting (0 Nm) before storing the tool in its case. Never use the torque wrench as a breaker bar or loosening lever on seized fasteners.