Gison GP-840A 3/8" Reversible Air Drill – 1,800 RPM High Torque
The Industrial Standard for Heavy-Duty Engineering & Maintenance
Built for the NZ Engineering Workshop
The Gison GP-840A is a 3/8" reversible air drill that prioritises durability and torque. Unlike lighter-duty models, the 840A features a 2,300 RPM motor—the "sweet spot" for drilling through steel, stainless, and aluminium without overheating the bit or stalling the tool.
High-Torque Performance
Where high-speed drills struggle with larger diameter bits, the GP-840A excels. The internal gearing is designed to provide consistent power, making it the preferred choice for tapping operations and maintenance tasks where control is more important than raw speed.
Key Features for Professionals:
- Keyed Chuck: Provides the highest level of bit security for industrial applications, preventing slippage under high load.
- Precision Reverse Lever: Located for easy thumb access, allowing you to back out of holes or taps instantly.
- Rear Exhaust Design: Directs pressurised air and oil mist away from the operator and the workpiece.
- Feathering Trigger: Allows for slow-start drilling to ensure your hole starts exactly where you want it.
Technical Specifications
| Chuck Size | 3/8" (10 mm) |
| Free Speed | 2,300 RPM |
| Net Weight | 1.20 kg |
| Air Consumption | 0.45 m³/min |
| Air Inlet | 1/4" |
- Short Description:
Gison 3/8" Air Drill GP-840A