Pencil Grinder, 60,000 rpm
Lightweight and precise, the Ingersoll Rand 7978 Pencil Air Grinder reaches tight spaces with front-exhaust comfort, making it ideal for aerospace, repair, and industrial finishing applications.
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Details
Product information
Overview
The Ingersoll Rand 7978 Pencil Air Grinder delivers high-speed performance in a durable, metal housing. Its powerful vane motor and slide throttle actuation make it ideal for precision aerospace work, general repair, and industrial finishing. With a front exhaust design, the 7978 directs airflow away from the operator, providing comfort during extended use.
Weighing just 5.5 oz (0.15 kg) and measuring 5.6 in (143 mm) in length, the 7978 can easily reach tight spaces, ensuring no detail is left unfinished. Its spindle offset of 0.4 in (9 mm) and low vibration level (<2.5 m/s²) combine to deliver precise, fatigue-free operation for professional technicians and operators.
| Technical Specifications | |
|---|---|
| Power Source | Air Powered |
| Sound Pressure | 76.0 / Na |
| Vibration Level | < 2.5 |
| Duty Rating | Heavy Duty |
| Air Inlet Size | 1/4" NPT |
| Min Hose Size | 1/4" |
| Air Pressure (PSI) | 90 |
| Air Consumption @ Load | 6 |
| Avg Air Consumption | 6 |
| Free Speed (RPM) | 60000 |
| Exhaust Direction | Front |
| Wheel Diameter | 0.25 |
| Power (HP) | 0.1 |
| Collet Size | 1/4" |
| Wheel Type | Burr |
| Weight (lbs) | 2.6 |
| Weight (kg) | 1.18 |
| Length (in) | 5.6 |
| Length (mm) | 142 |
| Width (in) | 6.4 |
| Width (mm) | 163 |
| Height (in) | 2.3 |
| Height (mm) | 58 |
| Housing Material | Steel |
| Configuration | Straight |
| MPN | 7978 |
| Features & Benefits | |
| High-Speed Performance – 60,000 rpm for fast, efficient grinding. | |
| Front Exhaust – Directs airflow away from operator for comfort. | |
| Lightweight & Compact – 5.5 oz, 5.6 in length for easy handling. | |
| Low Vibration – <2.5 m/s² reduces operator fatigue. | |
| Precision Reach – Pencil-thin design excels in tight and intricate areas. | |
| Versatile Throttle – Slide throttle provides controlled actuation. | |
| Low Vibration – <2.5 m/s² reduces operator fatigue. | |