For material removal and surface preparation tasks that require a high-output pneumatic tool with angle-head access, the Ingersoll Rand G3A120RP1045 G3 Series Angle Grinder combines a 1.35 HP air motor with 12,000 RPM free speed and a 5/8"-11 threaded spindle. The tool is configured with a 4.5-inch guard for compatible abrasive accessories, making it suited to grinding, weld cleanup, surface conditioning, and metal preparation operations where tool power and maneuverability are important.
The Ingersoll Rand G3A120RP1045 uses an angle configuration that positions the abrasive accessory for controlled contact with flat surfaces, edges, and fabricated components. Its rear exhaust directs discharged air away from the immediate work area, while the 12,000 RPM speed supports compatible grinding and surface-preparation accessories rated for the tool's operating speed. The 5/8"-11 spindle provides a common threaded interface for properly rated accessories, and the 4.5-inch guard configuration helps buyers match the grinder to the required abrasive diameter.
Type: Angle Grinder | Model: G3A120RP1045 | Series: G3 Series | Configuration: Angle | Motor Power: 1.35 HP | Free Speed: 12,000 RPM | Spindle Thread: 5/8"-11 | Guard Size: 4.5" | Exhaust: Rear
Features:
- 1.35 HP pneumatic motor provides power for grinding, material removal, and surface-preparation operations.
- 12,000 RPM free speed supports compatible abrasive accessories selected for the grinder's operating speed and application.
- 5/8"-11 threaded spindle accepts properly rated grinding and surface-preparation accessories with matching mounting requirements.
- 4.5-inch guard configuration helps protect the operator from debris and abrasive fragments when the correct guard and accessory are used together.
- Angle-head design supports tool positioning on flat surfaces, edges, weld areas, and fabricated metal components.
- Rear exhaust directs discharged air away from the immediate grinding area and workpiece.
- The G3 Series configuration supports demanding material removal and surface preparation work when supplied with clean, regulated compressed air.
Made in USA: 
Applications:
- Metal fabrication — grinding welds, removing excess material, and preparing fabricated components for subsequent finishing operations.
- Shipbuilding and heavy equipment work — cleaning weld areas and conditioning compatible metal surfaces during fabrication and repair.
- Industrial maintenance and MRO — removing corrosion, coatings, and surface irregularities from machinery and equipment components with the appropriate abrasive accessory.
- Foundry and casting operations — cleaning parting lines, gates, and surface imperfections from compatible cast components.
- General manufacturing — performing controlled grinding and surface preparation on metal parts, frames, structures, and assemblies.
FAQs:
- Q: What abrasive size is the Ingersoll Rand G3A120RP1045 configured to use?
A: The tool is supplied with a 4.5-inch guard configuration. Use only compatible abrasive accessories that match the spindle, guard, application, and manufacturer requirements. - Q: What accessories fit the 5/8"-11 spindle?
A: Use grinding and surface-preparation accessories with a compatible 5/8"-11 mounting interface that are approved for the application and rated at or above the grinder's 12,000 RPM free speed. - Q: What is the advantage of the 1.35 HP motor?
A: The motor provides the power needed for material removal and surface-preparation work with compatible abrasive accessories. Actual grinding performance depends on the abrasive type, workpiece material, applied pressure, and available compressed-air supply. - Q: What does rear exhaust mean on this angle grinder?
A: Rear exhaust means discharged air exits toward the back of the tool rather than directly around the abrasive and workpiece, helping reduce airflow disturbance near the immediate grinding area. - Q: Can a larger grinding wheel be installed if it fits the spindle thread?
A: No. Accessory selection must match the grinder's guard configuration, spindle requirements, and maximum operating speed. Do not install an oversized wheel simply because its thread fits the spindle.
Available Variations and Specifications
| Model | HP | RPM | Exhaust | Output | Type | Weight lb (kg) |
Length in (mm) |
Height in (mm) |
CFM |
|---|---|---|---|---|---|---|---|---|---|
| G-Series Angle Grinders | |||||||||
| G3A100RP106 | 1.35 | 10,000 | Rear | 5/8" – 11 thread, 6" guard | 27, 28 | 4.9 (2.2) | 9.6" (244) | 3.6" (91) | 33 |
| G3A120RG4 | 1.35 | 12,000 | Rear | 1/4" collet | N/A | 3.7 (1.6) | 9.5" (241) | 3.3" (84) | 55 |
| G3A120RP1045 | 1.35 | 12,000 | Rear | 5/8" – 11 thread, 4.5" guard | 27, 28 | 4.6 (2) | 9.6" (244) | 3.6" (91) | 55 |
| G3A120RP105 | 1.35 | 12,000 | Rear | 5/8" – 11 thread, 5" guard | 27, 28 | 4.7 (2.1) | 9.6" (244) | 3.6" (91) | 55 |
| G-Series Horizontal Grinders | |||||||||
| G3H150RG4 | 1.35 | 15,000 | Rear | 1/4" collet | N/A | 2.3 (1) | 9.1" (231) | N/A | 33 |
| G3H180RG4 | 1.35 | 18,000 | Rear | 1/4" collet | N/A | 2.3 (1) | 9.1" (231) | N/A | 55 |
| G-Series Extended Angle Sanders | |||||||||
| G3L086RS10 | 1.35 | 8,600 | Rear | 5/8" – 11 thread | N/A | 4.3 (1.9) | 13.0" (330) | 3.0" (76) | 33 |
| G-Series Extended Horizontal Grinders | |||||||||
| G3X150RG4 | 1.35 | 15,000 | Rear | 1/4" collet | N/A | 3.7 (1.6) | 14.1" (358) | N/A | 33 |
| G3X150RH64 | 1.35 | 15,000 | Rear | 3/8" – 24 thread, 4" guard | 1 | 4.5 (2) | 14.1" (358) | N/A | 33 |
| G3X180RG4 | 1.35 | 18,000 | Rear | 1/4" collet | N/A | 3.7 (1.6) | 14.1" (358) | N/A | 55 |
| G3X180RH63 | 1.35 | 18,000 | Rear | 3/8" – 24 thread, 3" guard | 1 | 4.5 (2) | 14.1" (358) | N/A | 55 |
Looking for more information about the Ingersoll Rand Grinder? Click here to view the Catalog
For help choosing the correct Ingersoll Rand Grinders for your application, please call (800) 608-5210 or email info@intlairtool.com
warning WARNING: This or other products sold on this website may expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
