For grinding and surface preparation in recessed areas, inside fabricated structures, or around components that limit standard-tool access, the Ingersoll Rand G3X150RH64 Extended Horizontal Grinder combines a 1.35 HP pneumatic motor with 15,000 RPM free speed, a 3/8"-24 threaded spindle, and a 4-inch guard. The extended horizontal configuration gives operators additional reach for positioning compatible guarded abrasive accessories on welds, edges, internal surfaces, and machinery components that are difficult to approach with a conventional angle grinder.
The Ingersoll Rand G3X150RH64 is configured for properly rated 4-inch abrasive accessories that match its spindle, guard, and operating-speed requirements. Its 15,000 RPM output supports localized material removal and surface conditioning, while the rear exhaust directs discharged air away from the immediate grinding area. This combination of extended reach, guarded wheel capacity, and pneumatic power makes the tool useful for fabrication, casting cleanup, equipment repair, and industrial maintenance where access and accessory compatibility drive grinder selection.
Type: Extended Horizontal Grinder | Model: G3X150RH64 | Series: G3 Series | Configuration: Extended Horizontal | Motor Power: 1.35 HP | Free Speed: 15,000 RPM | Spindle Thread: 3/8"-24 | Guard Size: 4" | Exhaust: Rear
Features:
- 1.35 HP pneumatic motor supplies power for grinding, weld cleanup, material removal, and localized surface-preparation work.
- 15,000 RPM free speed supports compatible abrasive accessories selected for the tool's speed and application.
- 3/8"-24 threaded spindle accepts properly matched abrasive accessories with the correct mounting interface.
- 4-inch guard configuration supports compatible guarded wheels while helping contain debris and abrasive fragments during operation.
- Extended horizontal design provides added reach into recessed areas, fabricated assemblies, and machinery structures.
- Rear exhaust directs discharged air away from the immediate work area and grinding interface.
- G3 Series configuration combines pneumatic power with an extended tool body for repeated industrial surface-preparation tasks.
Made in USA: 
Applications:
- Metal fabrication — grinding welds, cleaning internal surfaces, and removing localized material inside fabricated structures.
- Foundry and casting cleanup — addressing flash, parting lines, and surface imperfections in recessed areas of compatible cast components.
- Industrial maintenance and MRO — preparing machinery parts located behind brackets, guards, housings, and surrounding structures.
- Heavy equipment and transportation repair — reaching structural components, joints, and confined repair areas with compatible guarded abrasives.
- General manufacturing — performing repetitive grinding and surface conditioning on production components that are difficult to access with standard-length tools.
FAQs:
- Q: What is the main advantage of the G3X150RH64 extended configuration?
A: The extended horizontal body provides additional reach for positioning the abrasive in recessed areas and around components that obstruct standard-length grinders. - Q: What wheel size is this grinder configured to use?
A: The tool is configured with a 4-inch guard. Use only compatible abrasive accessories that match the guard, spindle thread, application, and manufacturer requirements. - Q: What accessories fit the 3/8"-24 spindle?
A: Use properly rated accessories with a matching 3/8"-24 mounting interface. The accessory must also be compatible with the 4-inch guard and rated at or above the tool's 15,000 RPM maximum speed. - Q: Can a larger abrasive wheel be installed if the thread fits?
A: No. Accessory selection must match the grinder's guard size, spindle requirements, wheel dimensions, and maximum operating speed. A matching thread alone does not make an abrasive safe or compatible. - Q: What does rear exhaust mean?
A: Rear exhaust routes discharged air toward the back of the grinder instead of directly around the wheel and workpiece, helping reduce airflow disturbance near the grinding area.
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
