MalcoEdge™ 3/8″ Flare Nut Torque Wrench – RTW375
The MalcoEdge RTW375 Flare Nut Torque Wrench is pre-set to deliver 28 ft-lbs (±1.5 ft-lbs) on 3/8″ flare nuts, helping HVACR technicians avoid the over- and under-tightening that leads to refrigerant leaks and callbacks. Its open-end claw design grips a 13/16″ hex and fits around copper tubing more easily than a socket-head torque wrench, especially in the tight spaces common on mini-split line sets. Because it’s fully mechanical, the RTW375 works in wet conditions and never needs batteries or calibration, unlike a digital torque wrench.
Features
- Pre-set to 28 ft-lbs (±1.5 ft-lbs) for 3/8″ flare nuts — no adjustment needed.
- Open-end claw design grips a 13/16″ hex and fits around copper tubing.
- Fully mechanical operation works in wet conditions with no batteries or calibration.
- Ratcheting head speeds up work in tight mini-split line set spaces.
- Compact size fits in a tool bag alongside other line set tools.
FAQs
Q1: Is the torque setting adjustable on the flare nut torque wrench?
A1: No. The torque is preset for the flare nut size the wrench is compatible with.
Q2: How do I know when torque has been achieved?
A2: The torque wrench will click when torque has been achieved.
Q3: Is calibration offered by Malco?
A3: No. The torque cannot be recalibrated. If you suspect the wrench is outside of the torque range, please contact customer service.
