The Ingersoll Rand 3107G EDGE Series 1/4-inch straight air die grinder is a compact, lightweight general-purpose grinder built for finishing, cutting, polishing, porting, light weld grinding, and breaking sharp edges. At just 1 lb and powered by a 0.33 HP motor spinning at 27,000 RPM free speed, it delivers quick material removal with the kind of control and torque accuracy that fine finishing work demands. Ball-bearing construction keeps it running consistently under continuous use, the self-locking lever throttle maintains speed without constant trigger pressure, and rear exhaust keeps air directed away from the work surface for better visibility and a cleaner work area. Compact enough to work in tight spaces and light enough to use all day without fatigue.
Features
- 0.33 HP motor delivers 27,000 RPM free speed for efficient material removal across finishing, cutting, polishing, porting, and light weld grinding applications.
- Long-life ball-bearing construction provides consistent performance under continuous use and extends service life compared to sleeve-bearing designs.
- Self-locking lever throttle maintains operating speed without requiring constant trigger pressure, reducing hand fatigue during extended use.
- Rear exhaust design directs air away from the work surface and operator, keeping the work area clear and improving visibility during precision grinding tasks.
- Ergonomic grip provides comfortable handling and exceptional torque accuracy, reducing operator fatigue and improving control on detail work.
- 1/4-inch collet accepts a wide range of standard die grinder bits, burrs, and accessories for maximum versatility.
- Compact straight profile fits into tight spaces where angle grinders and larger tools can’t reach.
- At 1 lb, it is among the lightest die grinders in its class — easy to handle for extended periods without wrist or arm fatigue.
Specifications
- Model: 3107G
- Collet size: 1/4 in.
- Free speed: 27,000 RPM
- Motor output: 0.33 HP
- Air consumption: 18 CFM
- Air inlet size: 1/4 in. NPT
- Minimum hose size: 3/8 in.
- Length: 6.6 in.
- Weight: 1 lb.
- Exhaust: rear
- Vibration: 2.6 m/s²










