Product details
Product Description
The ST-02-L Ratchet Torque Wrench by Super Stars is a professional HVAC service tool designed for precise tightening of flare nuts in refrigeration and air conditioning systems. Engineered with a fixed torque mechanism, it ensures accurate torque application, preventing over-tightening and refrigerant leakage.
This tool features a ratchet head design, allowing effortless operation even in narrow or confined spaces. The built-in audible click indication alerts the user when the preset torque is reached, ensuring consistent and safe connections.
Constructed with a high-hardness body and carbon steel ratchet head, the ST-02-L offers durability and long service life. Its ergonomic, non-slip handle provides comfort and control, making it ideal for daily HVAC installation and servicing work.
Key Features
- Fixed torque design with audible click indication
- Ratchet head for easy operation in tight spaces
- Suitable for R410A & R32 systems
- High hardness body for durability
- Carbon steel ratchet head
- Ergonomic non-slip handle
- Ensures accurate tightening and leak prevention
Technical Specifications
- Model: ST-02-L
- Brand: Super Stars
- Tool Type: Ratchet Torque Wrench
- Torque Type: Fixed Torque with sound indication
- Applicable Refrigerants: R410A, R32
- Applicable Use: Copper flare nut tightening
Torque & Size Details
- 1/4″ (17mm): 18 N·m (±2 N·m), Length: 217 mm, Weight: 335 g
- 3/8″ (22mm): 38 N·m (±4 N·m), Length: 252 mm, Weight: 395 g
- 1/2″ (24–26mm): 55 N·m (±6 N·m), Length: 263 mm, Weight: 440 g
- 5/8″ (27–29mm): 75 N·m (±7 N·m), Length: 294 mm, Weight: 475 g
Applications
- HVAC system installation
- Refrigerant copper pipe flare nut tightening
- R410A & R32 high-pressure systems
- Air conditioning servicing
- Professional field and workshop use
FAQ
Q1: What is the main purpose of this tool?
It is used to tighten flare nuts with precise torque to prevent gas leakage.
Q2: What makes it different from a normal wrench?
It has a fixed torque mechanism with a click sound, ensuring accurate tightening.
Q3: Can it be used in tight spaces?
Yes, the ratchet head design allows easy use in confined areas.
Q4: Is it suitable for modern refrigerants?
Yes, it is designed for R410A and R32 systems.
Q5: What sizes are available?
It supports sizes from 1/4″ to 5/8″ with different torque settings.







