1. Introduction
This manual provides essential information for the safe and effective use of your NEIKO 30060A 1/4" Air Right Angle Die Grinder. Please read and understand all instructions before operating the tool. Keep this manual for future reference.
The NEIKO 30060A is a versatile pneumatic tool designed for grinding, polishing, and sanding applications. Its right-angle head design facilitates access to confined spaces, and the pistol grip offers comfortable control. It features a standard 1/4-inch collet, a 20,000 RPM free-speed, 4 CFM air consumption, and a lever throttle for precise speed control. The rear exhaust system directs air away from the work area.
2. General Safety Information
Always observe basic safety precautions to reduce the risk of personal injury and damage to the tool.
2.1 Personal Protective Equipment (PPE)
- Eye Protection: Always wear ANSI-approved safety goggles or a face shield.
- Hearing Protection: Wear earplugs or earmuffs to prevent hearing damage from prolonged noise exposure.
- Hand Protection: Use work gloves to protect hands from abrasions and vibrations.
- Respiratory Protection: If grinding produces dust, wear a dust mask or respirator.
2.2 Work Area Safety
- Keep the work area clean and well-lit. Cluttered or dark areas invite accidents.
- Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases, or dust.
- Keep children and bystanders away while operating a power tool.
2.3 Tool Specific Safety
- Air Supply: Ensure the air compressor is set to the recommended pressure (90 PSI maximum). Do not exceed the maximum operating pressure.
- Disconnect Air: Always disconnect the air supply before changing accessories, making adjustments, or performing maintenance.
- Secure Workpiece: Always secure the workpiece in a vise or with clamps. Never hold the workpiece by hand.
- Inspect Accessories: Before each use, inspect grinding stones, rotary files, or other accessories for cracks, chips, or damage. Replace damaged accessories immediately.
- Proper Collet Size: Ensure the collet size matches the shank of the accessory being used.
- Avoid Overreaching: Maintain proper footing and balance at all times.
- Keep Hands Clear: Keep hands and fingers away from rotating accessories.
- Lubrication: Lubricate the tool daily with air tool oil as specified in the maintenance section.
3. Package Contents
Verify that all items are present upon unpacking:
- NEIKO 30060A 1/4" Air Right Angle Die Grinder
- Collet Wrenches (typically two are included for tightening)
- Instruction Manual
4. Setup
4.1 Connecting to Air Supply
- Ensure the air compressor is off and the air line is depressurized.
- Apply thread sealant tape to the male threads of the air inlet fitting (not included).
- Thread the air inlet fitting into the tool's air inlet port. Tighten securely.
- Connect the air hose to the air inlet fitting.
- Set the air compressor pressure regulator to a maximum of 90 PSI (6.2 bar).
4.2 Lubrication
Before first use, and daily thereafter, add 5-10 drops of air tool oil into the air inlet of the tool. This ensures proper lubrication and extends tool life.
4.3 Installing Grinding Accessories
- Disconnect Air: Ensure the air supply is disconnected from the tool.
- Insert Shank: Insert the shank of the grinding accessory into the 1/4" collet. Ensure at least 3/4" of the shank is inserted for secure gripping.
- Tighten Collet: Use the two collet wrenches provided to securely tighten the collet nut. One wrench holds the spindle, the other tightens the nut. Do not overtighten.
- Inspect: Verify the accessory is firmly seated and runs true without excessive wobble.

Image: NEIKO 30060A 1/4 inch Air Right Angle Die Grinder. This image shows the overall design of the die grinder, highlighting the 1/4 inch collet at the right-angle head where accessories are installed.
5. Operating Instructions
5.1 Starting and Stopping the Tool
- Connect the air supply.
- To start the tool, depress the paddle lever throttle. The tool will begin to rotate.
- To stop the tool, release the paddle lever throttle. The accessory will cease rotation.

Image: NEIKO 30060A 1/4 inch Air Right Angle Die Grinder. This image focuses on the tool's body, clearly showing the paddle lever throttle for activation and speed control.
5.2 Speed Control
The paddle lever throttle allows for feather-touch control, enabling you to apply smooth speeds evenly. Vary the pressure on the paddle to adjust the rotational speed of the accessory.
5.3 Grinding Techniques
- Always start the tool before bringing the accessory into contact with the workpiece.
- Apply light, even pressure. Do not force the tool, as this can reduce efficiency and damage the accessory or tool.
- Move the tool smoothly across the workpiece to ensure even material removal.
- Allow the tool to reach full speed before engaging the workpiece.
5.4 Rear Exhaust System
The tool features a rear exhaust system that directs expelled air away from the work area, improving visibility and comfort during operation.

Image: NEIKO 30060A 1/4 inch Air Right Angle Die Grinder. This image highlights the rear exhaust port at the base of the tool, indicating where air is expelled.
6. Maintenance
Regular maintenance ensures optimal performance and extends the life of your die grinder.
6.1 Daily Lubrication
Add 5-10 drops of high-quality air tool oil into the air inlet before each use and after every hour of continuous operation. This lubricates the internal motor components.
6.2 Cleaning
- Keep the tool clean and free of debris. Wipe down the exterior with a clean cloth.
- Periodically blow out the air inlet and exhaust ports with compressed air to remove any accumulated dust or particles.
6.3 Collet Care
- Inspect the collet and collet nut regularly for wear or damage. Replace if worn or cracked.
- Ensure the collet is clean and free of debris to maintain a secure grip on accessories.
6.4 Storage
When not in use, store the die grinder in a clean, dry environment, away from direct sunlight and extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start or runs slowly |
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| Excessive vibration |
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| Air leaks from tool body |
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8. Specifications
| Feature | Detail |
|---|---|
| Model Number | 30060A |
| Collet Size | 1/4 inch |
| Maximum Rotational Speed | 20,000 RPM |
| Air Consumption | 4 CFM (Cubic Feet per Minute) |
| Recommended Air Pressure | 90 PSI (6.2 bar) |
| Exhaust Type | Rear |
| Tool Length | Approximately 6 inches (15.24 cm) |
| Item Weight | 16 ounces (1 lb) |
| Power Source | Pneumatic-powered |

Image: NEIKO 30060A 1/4 inch Air Right Angle Die Grinder. This image shows the tool being held, providing a sense of its compact size and ergonomic design, with approximate dimensions indicated.
9. Warranty and Support
9.1 Warranty Information
NEIKO products are manufactured to high-quality standards. For specific warranty details, please refer to the warranty card included with your product or visit the official NEIKO website. Keep your purchase receipt as proof of purchase.
9.2 Customer Support
If you have any questions, require technical assistance, or need to report a problem with your NEIKO 30060A die grinder, please contact NEIKO customer support. Contact information can typically be found on the product packaging or the official NEIKO website.