For metal fabrication and surface preparation tasks that require faster abrasive speed with a metric threaded spindle, the Ingersoll Rand M2A120RP945 M2 Series Angle Grinder combines a 1 HP motor with 12,000 RPM free speed, an M14 spindle thread, and rear exhaust. The angle-head configuration supports access to flat surfaces, edges, weld areas, and fabricated components, while the higher operating speed makes proper abrasive selection and speed-rating verification essential for safe, effective use.
The Ingersoll Rand M2A120RP945 is a metric-configured M2 Series pneumatic grinder intended for compatible M14-mounted abrasive accessories. Its 12,000 RPM speed provides a faster-running alternative to lower-speed M2 configurations for grinding and surface preparation processes suited to the tool's specified capability. Rear exhaust directs discharged air toward the back of the grinder, helping keep the exhaust stream away from the immediate work area and operator interface.
Type: Angle Grinder | Model: M2A120RP945 | Series: M2 Series | Motor Power: 1 HP | Free Speed: 12,000 RPM | Spindle Thread: M14 | Exhaust: Rear
Features:
- 1 HP pneumatic motor provides power for compatible grinding, surface preparation, and material removal operations.
- 12,000 RPM free speed supports faster abrasive operation when paired with properly rated accessories and the correct mounting hardware.
- M14 metric spindle thread accommodates compatible threaded abrasive accessories and wheel-mounting components.
- Angle-head configuration provides practical access to workpiece surfaces, edges, weld areas, and other common grinding locations.
- Rear exhaust directs discharged air away from the immediate grinding area and operator interface.
- Metric configuration supports facilities and applications that use M14-compatible abrasive tooling.
- Pneumatic operation supports repeated grinding tasks when supplied with clean, regulated, and properly conditioned compressed air.
Applications:
- Metal fabrication — grinding edges, removing excess material, and preparing compatible metal surfaces for subsequent fabrication steps.
- Weld cleanup — removing compatible weld buildup, spatter, and surface irregularities where the angle-head configuration provides suitable access.
- Foundry and casting operations — cleaning cast surfaces and addressing gates, risers, and other areas appropriate for the grinder and selected abrasive.
- Maintenance and repair work — performing grinding and surface preparation on machinery, fabricated parts, and metal components.
- Production metalworking — supporting repeated abrasive processes where a 12,000 RPM metric-spindle angle grinder matches the accessory and application requirements.
FAQs:
- Q: What does the M14 specification mean on the M2A120RP945?
A: M14 identifies the metric spindle thread used with compatible threaded abrasive accessories or mounting hardware. Verify the accessory thread, mounting requirements, dimensions, and maximum rated speed before installation. - Q: What is the free speed of the Ingersoll Rand M2A120RP945?
A: The grinder has a specified free speed of 12,000 RPM. Any abrasive accessory used with the tool must be compatible with its mounting configuration and rated for the grinder's operating speed. - Q: How does the M2A120RP945 differ from the M2A090RP95?
A: The M2A120RP945 operates at 12,000 RPM, while the M2A090RP95 operates at 9,000 RPM. Both supplied product titles identify 1 HP M2 Series angle grinders with M14 metric spindle configurations and rear exhaust. - Q: What is the purpose of rear exhaust on this angle grinder?
A: Rear exhaust routes discharged air toward the back of the tool, helping keep the exhaust stream away from the immediate grinding area and operator interface. - Q: What should be checked before installing an abrasive accessory?
A: Confirm the M14 spindle compatibility, accessory dimensions, mounting hardware requirements, approved accessory type, and maximum rated speed. Follow the tool and abrasive manufacturer's guarding, inspection, installation, and operating instructions.
Available Variations and Specifications
| Model | RPM | Output | Type | Weight kg (lbs.) |
Length mm (in) |
Height Over Spindle End mm (in) |
Air Flow On Load / No Load (L/s) |
Vibration / K (m/s²) |
|---|---|---|---|---|---|---|---|---|
| M2 Series Angle Grinders | ||||||||
| M2A090RP95 | 9,000 | M14 THD | Wire Brush – 5" max | 1.62 (3.56) | 236 (9.29) | 86 (3.39) | 19.8 / 10.4 | 4.6 / 1.6 |
| M2A120RG4 | 12,000 | Collet (6 mm & 1/4") |
Burr | 1.62 (3.56) | 227 (8.94) | 83 (3.28) | 19.8 / 8.0 | 2.3 / 0.8 |
| M2A120RP945 | 12,000 | M14 THD | 4-1/2" × 1/4" wheel – Type 27 | 1.71 (3.76) | 236 (9.29) | 86 (3.39) | 19.8 / 8.0 | 5.1 / 1.5 |
| M2A120RP95 | 12,000 | 5" × 1/4" M14 THD |
5" × 1/4" wheel – Type 27 | 1.77 (3.89) | 236 (9.29) | 86 (3.39) | 19.8 / 8.0 | 5.0 / 0.9 |
| M2A180RG4 | 18,000 | Collet (6 mm & 1/4") |
Burr | 1.62 (3.56) | 227 (8.94) | 83 (3.28) | 19.8 / 11.8 | 3.1 / 1.0 |
| M2 Series Straight Grinders | ||||||||
| M2H180RG4 | 18,000 | Collet (6 mm & 1/4") |
Burr | 0.77 (1.69) | 213 (8.38) | N/A | 19.8 / 6.6 | 4.2 / 1.6 |
| M2H200RG4 | 20,000 | Collet (6 mm & 1/4") |
Burr | 0.77 (1.69) | 213 (8.38) | N/A | 19.8 / 8.0 | 4.4 / 1.1 |
| M2H250RG4 | 25,000 | Collet (6 mm & 1/4") |
Burr | 0.77 (1.69) | 213 (8.38) | N/A | 19.8 / 11.8 | < 2.5 |
| M2 Series Extended Straight Grinders | ||||||||
| M2X180RH63 | 18,000 | 3/8"-24 THD | 3" × 1/2" wheel – Type 1 | 1.48 (3.26) | 339 (13.35) | N/A | 19.8 / 6.6 | < 2.5 |
| M2X075RG4 | 7,500 | Collet (6 mm & 1/4") |
Sanding Drum (Mounted) |
1.35 (2.97) | 304 (11.95) | N/A | 19.8 / 11.8 | < 2.5 |
| M2X180RG4 | 18,000 | Collet (6 mm & 1/4") |
Burr | 1.22 (2.68) | 332 (13.08) | N/A | 19.8 / 6.6 | 2.8 |
| M2X200RG4 | 20,000 | Collet (6 mm & 1/4") |
Burr | 1.22 (2.68) | 332 (13.08) | N/A | 19.8 / 8.0 | < 2.5 |
| M2X250RG4 | 25,000 | Collet (6 mm & 1/4") |
Burr | 1.22 (2.68) | 332 (13.08) | N/A | 19.8 / 11.8 | < 2.5 |
| M2 Series Extended Angle Sanders | ||||||||
| M2L055RS9 | 5,500 | M14 THD | Sanding Pad | 1.90 (4.18) | 318 (12.52) | 91 (3.57) | 19.8 / 11.8 | 3.7 |
| M2L040RS9 | 4,000 | M14 THD | Sanding Pad | 1.90 (4.18) | 318 (12.52) | 91 (3.57) | 19.8 / 6.6 | 2.8 |
| M2L025RS9 | 2,500 | M14 THD | Sanding Pad | 1.90 (4.18) | 318 (12.52) | 91 (3.57) | 19.8 / 8.0 | 4.0 |
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