Cleco C3120A45-M14OH Right Angle Grinder | 4-1/2" Wheel Dia. | 1.7 HP | 12000 RPM | 3.03" Head | Rear Exhaust

Built for weld cleanup, edge grinding, abrasive cutting, and surface preparation, the Cleco C3120A45-M14OH right angle grinder delivers 1.7 HP of pneumatic power in a compact wheel-grinder configuration. Its 4-1/2" wheel capacity gives fabricators, mechanics, and maintenance teams a common abrasive size for metal removal work, while the 12,000 RPM free speed supports fast cutting and grinding when used with properly rated accessories. The 3.03" head height helps the tool fit around brackets, weldments, frames, and other restricted work areas where a larger vertical grinder may be awkward.

The C3120A45-M14OH is the M14 x 2 spindle thread version of Cleco’s C31 Series 4-1/2" right angle grinder. The M14 spindle configuration is commonly used with metric threaded abrasive hardware and should be matched carefully to the wheel, guard, and flange setup. Rear exhaust directs spent air away from the work surface, while the anti-vibration handle, quick-change spindle lock, and 270-degree adjustable guard help support controlled grinding in fabrication shops, industrial MRO departments, vehicle repair facilities, and welding environments.

Type: Right Angle Grinder | Series: Cleco C31 | Model: C3120A45-M14OH | Power: 1.7 HP / 1.25 kW | Free Speed: 12,000 RPM | Wheel Size: 4-1/2" / 115 mm | Spindle Thread: M14 x 2 | Length: 8.95" | Head Height: 3.03" | Weight: 3.98 lbs / 1.80 kg | Air Inlet: 3/8" | Air Consumption at Free Speed: 35.7 SCFM / 31 l/s | Minimum Hose I.D.: 1/2" | Exhaust: Rear

Features:

• High-performance 1.7 HP motor provides the output needed for grinding, cutting, and metal surface preparation.
• Quick-change spindle lock helps reduce downtime when changing abrasive wheels.
• Rear exhaust overhose configuration routes exhaust air away from the work area.
• Anti-vibration handle helps improve control during repeated grinding passes.
• Dual-layer, high-impact composite housing supports durability while keeping the tool manageable for handheld operation.
• Versatile 270-degree adjustable guard allows the guard position to be changed for different grinding angles and access points.
• Available for Type 27, Type 27 threaded hub, and Type 1 abrasive disc configurations when the accessory, spindle, guard, and speed rating are compatible.

Made in USA:

Applications:

• Metal fabrication: Grinding weld beads, dressing cut edges, and cleaning steel components before finishing or assembly.
• Industrial maintenance and MRO: Cutting, deburring, and surface prep on brackets, frames, guards, fixtures, and machinery components.
• Welding shops: Removing spatter, blending welds, and preparing repair areas before rework or coating.
• Automotive and fleet repair: Working around frames, exhaust components, body panels, and service brackets where a compact right angle grinder is useful.
• DIY garage and workshop use: General metal grinding and cutting tasks when paired with a properly sized compressor and compatible abrasive wheels.

FAQs:

• Q: What is the main difference between the C3120A45-M14OH and the C3120A45-58OH?
  A: The key difference is the spindle thread. The C3120A45-M14OH uses an M14 x 2 spindle thread, while the 58OH version uses a 5/8"-11 spindle thread. Match the grinder to the abrasive wheel and hardware standard used in your shop.
• Q: What wheel size does this Cleco grinder use?
  A: This model is listed for 4-1/2" / 115 mm abrasive wheels. The wheel must match the M14 x 2 spindle configuration, the installed guard, and the tool’s 12,000 RPM speed rating.
• Q: Why is the RPM rating important on a right angle grinder?
  A: The abrasive accessory must be rated at or above the tool’s maximum speed. Never install a wheel with a lower RPM rating than the grinder, even if the diameter and thread appear to fit.
• Q: What does rear exhaust mean?
  A: Rear exhaust sends spent air toward the back of the tool instead of directly onto the workpiece. This helps keep airflow away from the grinding area and can improve visibility during cleanup and cutting work.
• Q: What size air hose should be used with this grinder?
  A: The manufacturer lists a 1/2" minimum hose I.D. for this model. Using undersized hose can restrict airflow and reduce grinder performance under load.

Looking for more information about Cleco Grinder? Click here to view the Catalog

Need help selecting the correct Cleco Grinders for your application? Please call (800) 608-5210 or email info@intlairtool.com