Description
Sunex Tools 3/8″ Drive Magnesium Composite Impact Wrench (SX3802) is a precision-engineered pneumatic tool designed for professional automotive and industrial applications. This wrench is specifically built to address the need for high-torque output while minimizing physical strain on the operator. By utilizing a magnesium alloy clutch housing, the SX3802 achieves a weight of just 2.3 lbs while maintaining the structural integrity required for heavy-duty shop environments. This material choice also provides superior heat dissipation and increased resistance to corrosive chemicals often found in garages.
Key Features and Benefits:
- High Power-to-Weight Ratio: A ratio of 261 ft-lb/lb provides significant torque without the bulk of traditional 1/2″ drive impact wrenches.
- Magnesium Alloy Construction: Designed for longevity while offering protection against impacts and corrosion and effectively managing heat.
- Improved Maneuverability: The 360-degree rotating air inlet prevents air hose kinking for better access to tight spaces.
- One-Handed Control: The rear-mounted switch regulator allows easy torque adjustments and direction changes with a single thumb movement.
- Noise Management: Operating at 100.8 dBA, the tool minimizes noise pollution in the workspace compared to standard pneumatic impacts.
- Handle Ergonomics: The 40% glass-filled nylon handle is shaped for comfort, reducing hand fatigue during extended use.
Specifications:
- Drive Size: 3/8″
- Breakaway Torque: 600 ft-lbs
- Working Torque: 400 ft-lbs
- Free Speed: 10,000 RPM
- Impacts Per Minute: 1,250 IPM
- Weight: 2.3 lbs
- Power-to-Weight Ratio: 261 ft-lb/lb
- Sound Level: 100.8 dBA
- Handle Material: 40% Glass-filled Nylon
- Housing Material: Magnesium Alloy
- Inlet Size: 1/4″ NPT
- What’s Included: 3/8″ Magnesium Composite Impact Wrench (SX3802) and User Manual
How to Use:
- Preparation: Apply 2Ð3 drops of air tool oil into the 1/4″ NPT air inlet for internal lubrication before connecting to an air source.
- Connection: Attach a 3/8″ ID air hose to the rotating air inlet, ensuring your compressor is set to a regulated 90 PSI for optimal performance.
- Socket Selection: Firmly press a 3/8″ drive impact-rated socket onto the anvil. Do not use standard chrome sockets as they may shatter under impact.
- Direction and Torque Setup: Use the one-hand switch regulator at the rear to select the desired direction and torque setting.
- Operation: Position the socket over the fastener, grip the ergonomic handle, and pull the trigger. Apply steady pressure until the fastener is loosened or tightened to specification.
- Storage: Disconnect the air line after use and wipe the magnesium housing clean of grease or debris.
Benefits of Using Sunex Tools 3/8″ Drive Magnesium Composite Impact Wrench (SX3802):
- Compact & Lightweight: The 2.3 lbs weight allows for reduced operator fatigue, performing the work of larger tools.
- Durability: Magnesium alloy ensures the tool remains resilient under high heat generated by frequent use.
- Increased Efficiency: The 7-vane rotor system enhances the tool’s lifespan and reduces internal friction, ensuring consistent performance.
Features:
- 7-Vane Rotor: Spring-loaded vanes allow for immediate start-up and consistent torque delivery.
- Thumb-Actuated Regulator: Multi-position power settings for quick, one-handed adjustments.
- Rotating Air Inlet: 360-degree swivel design that minimizes hose tension for improved access.
- Glass-Filled Nylon Grip: High-impact resistant handle material ensures a secure grip in oily or greasy conditions.
- Internal Heat Management: Magnesium alloy clutch housing designed to dissipate heat faster than plastic or aluminum.
- Balanced Impact Mechanism: Designed to provide 1,250 IPM with minimal kickback for the user.





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