Introduction
The Casfuy N65 6-Speed Rechargeable Pet Nail Grinder is designed to provide a safe, efficient, and comfortable nail trimming experience for your pets. Featuring a quiet motor, adjustable speeds, multiple grinding ports, and integrated LED lights, this tool helps maintain your pet's nail health with ease.

The Casfuy N65 6-Speed Rechargeable Pet Nail Grinder, shown in purple, ready for use.
Safety Information
WARNING: Use only under adult supervision. Wear safety glasses to protect against flying debris. Keep hands and other body parts away from the grinding bit to prevent injury. Do not use on wet or damp nails to prevent slipping and potential burns. Store in a cool, dry place away from heat sources and flammable materials.
Product Features
- 6 Adjustable Speeds (7000-12000 RPM): Allows for precise control suitable for both experienced and novice users. The device remembers your last speed setting.
- 3 Grinding Ports: Designed for various pet sizes – small, medium, and large.
- 2 Built-in LED Lights: Illuminates the pet's nail to help identify the quick and prevent over-trimming.
- Low Vibration (≤45 dB): Ensures a quiet and gentle grooming experience, reducing pet anxiety.
- Removable Plastic Sheath: Collects nail dust and debris for easier cleanup.
- Rechargeable Battery: Provides up to 4 hours of operation on a full charge.
Setup
1. Charging the Grinder
Before first use, fully charge the nail grinder. Connect the provided USB cable to the grinder's charging port and plug the other end into a compatible USB power source (e.g., AC adapter, laptop, power bank). The indicator light will show charging status and turn solid when fully charged. A full charge provides approximately 4 hours of use.

The Casfuy N65 nail grinder's USB charging port and various compatible power sources for convenient recharging.
2. Selecting the Grinding Port
The grinder features three different sized ports to accommodate various pet nail sizes. Choose the port that best fits your pet's nail for optimal grinding and safety.
- Small Port: For small pets and puppies.
- Medium Port: For medium-sized pets.
- Unprotected Grinding Bit: For large dogs with thick nails.

Visual guide to selecting the appropriate grinding port for small, medium, and large pets.
Operating Instructions
1. Acclimating Your Pet
To help your pet get used to the grinder, allow them to sniff and investigate the device while it is off. Turn the grinder on briefly so they can hear the sound. Offer treats and praise to create a positive association. Gradually introduce the grinder to their paw without grinding, then briefly touch a nail. Patience is key.

Introduce the grinder to your pet gradually to build comfort.
2. Power On and Speed Adjustment
Slide the power switch to turn the grinder on. Use the speed adjustment dial to select one of the six available speeds (1-6). The grinder will remember your last used speed setting for convenience.

The speed adjustment dial on the Casfuy N65 grinder, offering 6 speed settings.
Official Casfuy video demonstrating the 6-speed settings and general use of the dog nail grinder.
3. Grinding Technique
Gently hold your pet's paw and carefully place the nail into the chosen grinding port. Grind each nail for no more than 2 seconds at a time, using a 45-degree angle. This prevents overheating and allows you to check the nail's progress. The built-in LED lights will help you visualize the quick, the sensitive part of the nail containing blood vessels and nerves, to avoid injury.

The LED lights illuminate the nail, making it easier to see the quick and prevent over-grinding.

Proper grinding technique: hold at a 45-degree angle and grind for no more than 2 seconds at a time.

Visual guide on how to avoid grinding too deep and hitting the quick.
4. Rewarding Your Pet
After grinding, reward your pet with treats and praise. This reinforces positive behavior and makes future grooming sessions easier.

Reward your pet with treats and praise after each grooming session.
Maintenance
Cleaning the Grinder
After each use, remove the plastic sheath (dust cap) and gently clean the grinding bit with a soft cloth or brush to remove any nail dust and debris. This ensures optimal performance and hygiene. Do not rinse the main body of the grinder under water.

The removable plastic sheath helps collect nail dust for easy disposal.

Wipe the grinding bit clean after each use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Grinder does not turn on | Low battery; Power switch off | Charge the grinder fully; Ensure power switch is in the 'on' position. |
| Grinding speed is too slow | Low battery; Speed setting too low | Charge the grinder fully; Adjust the speed dial to a higher setting. |
| Pet resists nail grinding | Fear of sound/vibration; Uncomfortable experience | Re-acclimate your pet gradually with treats and praise; Ensure gentle handling and short grinding sessions. |
| Excessive nail dust | Dust cap not properly attached or clogged | Ensure the plastic sheath (dust cap) is securely attached; Clean the dust cap and grinding bit regularly. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | N65 |
| Brand | Casfuy |
| Material | Plastic |
| Power Source | Battery Powered |
| Maximum Rotational Speed | 12000 RPM |
| Battery Average Life | 4 Hours |
| Item Weight | 0.31 Kilograms (10.93 ounces) |
| Package Dimensions | 8.07 x 4.06 x 1.81 inches |
Warranty and Support
For warranty information or technical support, please contact Casfuy customer service directly. Refer to the product packaging or the official Casfuy website for contact details.





