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Red and black 1/2 inch impact wrench showing square drive anvil, trigger, ergonomic grip, SHINANO logo, and air inlet at handle baseSilhouette diagram of impact wrench with dimensions labeled 74mm, 175mm, and 189mm

1/2-Inch Drive Pneumatic Impact Wrench, 850 Nm Maximum Torque, Single Hammer

Compact, lightweight 1/2-inch impact wrench delivering 850 Nm torque with 4-position power regulator and integrated muffler for shop efficiency.

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Description

1/2-Inch Drive Pneumatic Impact Wrench, 850 Nm Maximum Torque, Single Hammer

Brief Overview

This 1/2-inch pneumatic impact wrench combines lightweight ergonomics with solid torque delivery for general automotive fastening and service work. At 1.9 kg with a compact 175 mm length, it's built for extended hand fatigue reduction in high-volume shops. The single-hammer mechanism provides controlled power ideal for standard bolt removal and installation. For shops needing greater striking force, larger-capacity twin-hammer wrenches offer increased impact frequency, while smaller 3/8-inch drive models serve precision assembly tasks.

Key Features

  • Compact, Balanced Design: 175 mm overall length and 1.9 kg weight reduces operator fatigue during extended use
  • 4-Position Power Regulator: Adjustable output dial enables tool matching to fastener size and material without tool changes
  • Forward/Reverse Lever: Intuitive directional control for bolt removal and installation
  • Integrated Muffler: Reduces noise output to 94 dBA, meeting shop noise management requirements
  • Rubberized Ergonomic Grip: Textured finger grooves and composite housing provide stable control and durability
  • 1/2-Inch Square Drive: Compatible with standard 1/2" impact sockets and accessories
  • Single Hammer Mechanism: Reliable, straightforward power delivery with minimal maintenance

Business Advantages for Resellers

This tool addresses the core need of service shops requiring reliable, repeatable fastening performance without premium pricing. The lightweight design and compact profile attract technicians rotating between multiple vehicles, reducing setup time per job. Low air consumption (2.4 L/s) means compatibility with standard shop compressors, eliminating infrastructure investment barriers for smaller operations. The integrated muffler supports compliance with workplace noise regulations, reducing liability and improving shop environment—a selling point to safety-conscious fleet operators.

Technical Specifications

Specification Value
Maximum Torque 850 Nm (627 ft-lbs)
Working Torque Range 0–620 Nm (0–457 ft-lbs)
Bolt Capacity 20 mm (3/4 inch)
Free Speed 8,000 rpm (forward), 8,500 rpm (reverse)
Weight 1.9 kg (4.19 lbs)
Overall Length 175 mm
Head Width 74 mm
Noise Level 94 dBA (105 dB power)
Vibration 8.6 / 1.3 m/s²
Average Air Consumption 2.4 L/s (5.1 CFM)
Air Inlet Size 1/4 inch
Hose Connection 10 mm (3/8 inch)
Drive Size 1/2 inch square
Hammer Type Single hammer

Reseller Value Proposition

Stock this tool as a high-turnover item for shops with mixed fastening demands. The 850 Nm capacity handles standard automotive work—engine assembly, suspension fasteners, exhaust systems—without the cost and weight premium of oversized models. Pair it with compact impact sockets and air ratchet alternatives to build a complete fastening system for distributor customers. The low noise and minimal air demand make it an attractive upgrade for technicians working in noise-sensitive environments or facilities with aging compressor infrastructure.

Bulk Order Ready: Lightweight, durable design ensures predictable inventory turnover and repeat customer demand.