ZIW337P 3/8″ Twin Turbo Palm Air Impact Wrench

The ZIW337P 3/8-inch Twin Turbo Palm Air Impact Wrench is a compact, high-efficiency pneumatic fastening tool designed to deliver strong torque in a lightweight palm-style body. Equipped with an advanced Twin Turbo impact mechanism, this tool delivers smooth, consistent power output, making it ideal for precision fastening, automotive service, and assembly operations in confined work areas. Its compact size allows easy maneuverability while maintaining excellent torque capability for medium-duty fastening tasks. The ergonomic palm design enhances handling and control, enabling comfortable one-handed operation during extended use.

Key Features

• Compact palm-style design for improved accessibility and one-hand operation

• 3/8 inch square drive suitable for precision and medium-duty fastening tasks

• Twin Turbo impact mechanism delivers strong and smooth torque output

• Lightweight housing reduces operator fatigue

• High power-to-size ratio for confined workspace applications

• Ergonomic grip improves comfort and operational control

• Variable speed trigger enables precise fastening control

• Forward and reverse operation with convenient direction switching

• Rear exhaust directs airflow away from the operator and the work surface

• Durable internal components ensure long service life

Applications

The ZIW337P Twin Turbo Palm Air Impact Wrench is ideal for

• Automotive repair and maintenance work

• Engine compartment and interior assembly operations

• Motorcycle and light vehicle servicing

• Assembly line fastening applications

• Equipment maintenance and repair

• General industrial and workshop fastening tasks

Performance Advantages

Compact Power Performance
Twin Turbo mechanism delivers efficient torque output in a small tool profile

Enhanced Accessibility
Palm-style design enables operation in narrow and restricted spaces

Operator Comfort
Lightweight construction reduces fatigue during repetitive use

Smooth Torque Delivery
Balanced impact mechanism improves control and reduces vibration

Improved Productivity
Fast fastening and loosening speeds increase operational efficiency

Reliable Durability
Robust internal design supports long-term professional use

Technical Highlights

• Tool Type
  Pneumatic palm impact wrench

• Drive Size
  3/8 inch square drive

• Impact Mechanism
  Twin Turbo dual hammer system

• Operation Mode
  Trigger-controlled forward and reverse

• Exhaust Type
  Rear exhaust

• Housing
  Compact lightweight construction

• Pneumatic Efficiency
  Optimized airflow for stable performance

• Maintenance
  Simple maintenance with a durable internal structure

Why Choose ZIW337P

The ZIW337P 3/8-inch Twin Turbo Palm Air Impact Wrench is designed for professionals who need compact size, precise control, and dependable torque. Its palm-style configuration and Twin Turbo mechanism provide an ideal balance between maneuverability and power, making it especially suitable for automotive and assembly applications. With ergonomic handling, consistent impact performance, and durable construction, the ZIW337P delivers efficient fastening, reduced operator fatigue, and reliable long-term operation in demanding professional environments.

Features & Benefits

• Revolutionary patented DAI Double Air Intake motor system. Innovative design increases airflow, delivering high torque in an absolutely compact machine.
• One-handed switch for 2 speeds forward, 1 speed reverse.
• The shortest length for better access in tight areas.
• Ergonomics comfort handle with a well-balanced design for user-friendliness.
• Viton oil seal to prevent oil leakage under high-performance and high-temperature conditions.
• The front and end rotor plate inserts a thin steel plate to prevent wear and maintain high performance.
• Cold resistance against -25°C for composite motor housing.
• Complex processing and special rotor blade material provide wear resistance & very long life.

Features:

• Powerful Twin turbo air inlet motor and twin hammer impact wrench with super low vibration and super low reaction force.
• Working torque: 450 Nm (332 ft-lbs)
• Forward and reverse: single-stage  (right/left)
• Cold insulated handle

Specification:

• Square Drive: 3/8(10) inch(mm)
• Free Speed: 8000 rpm
• Max. Torque: 369(500) ft-lb(Nm)
• Avg. Air Cons.: 4(113) cfm(l/min)
• Overall Length: 3.35(85) inch(mm)
• Net Weight: 2.43(1.1) lbs(kgs)
• Air Inlet Size: 1/4 inch-NPT/PT
• Impact mechanism: Twin Hammer
• Operating Air Pressure: 90(6.2) psi(bar)
• Min. Hose Size: 3/8(10) inch(mm)