1. Introduction
The Hercules RK-BAT-100 is a versatile 5-speed cordless electric rotary cutter designed for precision cutting of various materials, including cloth, leather, natural, and synthetic fabrics. Its cordless design offers enhanced mobility and convenience for a wide range of applications. This manual provides essential information for safe and effective operation, maintenance, and troubleshooting of your device.
2. Safety Instructions
Always observe the following safety precautions to prevent injury or damage to the tool:
- Read all instructions: Familiarize yourself with the tool's operation and safety guidelines before use.
- Wear appropriate safety gear: Always wear safety glasses and gloves when operating the cutter.
- Keep work area clear: Ensure your workspace is well-lit and free from clutter to prevent accidents.
- Avoid accidental starting: Ensure the power switch is off before installing the battery pack, picking up, or carrying the tool.
- Do not overreach: Maintain proper footing and balance at all times.
- Secure workpiece: Use clamps or other practical ways to secure and support the workpiece to a stable platform.
- Keep hands away from blade: The blade is extremely sharp. Never touch the blade while the tool is operating or immediately after use.
- Use the correct blade: Only use blades designed for this model.
- Store safely: When not in use, store the tool in a dry, secure place out of reach of children.
- Battery safety: Use only the specified charger and battery packs. Do not expose batteries to extreme heat or water.
3. Package Contents
Verify that all items listed below are included in your package:
- Hercules RK-BAT-100 Rotary Cutter
- Rechargeable Li-ion Battery (typically 2 units)
- Battery Charger
- Spare Blade (if included)
- Small Oil Bottle
- Hex Wrench
- User Manual

Image: Hercules RK-BAT-100 with its complete set of accessories.
Video: Unboxing the Hercules RK-BAT-100 rotary cutter, showing all components included in the package.
4. Product Overview
The Hercules RK-BAT-100 features a robust design for efficient cutting. Key components include:
- Handle: Ergonomically designed for comfortable grip.
- Power Switch: Controls the motor.
- Speed Control: Allows selection of 5 different cutting speeds.
- 4-inch Octagonal Blade: High-speed blade for clean cuts.
- Blade Guard: Provides protection during operation.
- Built-in Sharpening Stone: For maintaining blade sharpness.
- Base Plate: Ensures smooth gliding over materials.
- Battery Compartment: Houses the rechargeable Li-ion battery.
- LED Light: Illuminates the cutting area.

Image: Main view of the Hercules RK-BAT-100 rotary cutter.

Image: Side profile of the Hercules RK-BAT-100.
5. Setup
- Charge the Battery: Before first use, fully charge the battery pack using the provided charger. Refer to Section 6 for detailed charging instructions.
- Install Battery: Slide the charged battery pack into the battery compartment at the base of the handle until it clicks securely into place.
- Check Blade: Ensure the 4-inch octagonal blade is properly installed and the blade guard is in position. The carbide-tipped, spring-loaded lower blade should be free to move.
- Lubrication: Apply a small amount of the provided oil to the blade and moving parts as indicated in the maintenance section to ensure smooth operation.
6. Charging the Battery
The Hercules RK-BAT-100 uses a rechargeable Li-ion battery. Follow these steps to charge:
- Connect the battery charger to a standard electrical outlet.
- Insert the battery pack into the charger. Ensure it is seated correctly.
- Observe the indicator lights on the charger. A red light typically indicates charging, while a green light indicates a full charge.
- Once fully charged, remove the battery from the charger. Do not overcharge.

Image: Hercules RK-BAT-100 with battery installed.
7. Operating Instructions
Follow these steps for safe and effective cutting:
- Prepare Material: Lay the material flat on a stable cutting surface. Mark your cutting lines clearly.
- Power On: Press the power switch to turn on the cutter. The LED light will illuminate the cutting area.
- Select Speed: Use the speed control to select one of the 5 available speeds. Start with a lower speed for delicate materials or when learning, and increase for thicker or tougher materials.
- Begin Cutting: Place the base plate of the cutter flat on the material, aligning the blade with your marked line. Gently push the cutter forward, allowing the blade to cut through the material. Maintain a steady, even pressure.
- Cutting Multiple Layers: The RK-BAT-100 is designed to cut multiple layers of fabric. Ensure the layers are stacked evenly and secured to prevent shifting.
- Cutting Curves: For curves, guide the cutter slowly and smoothly along the desired path. The octagonal blade design assists in navigating curves without distorting the fabric.
- Power Off: Release the power switch to turn off the cutter when finished or when repositioning the material.

Image: Hercules RK-BAT-100 in action, cutting fabric with the integrated LED light.
Video: Demonstration of the Hercules RK-BAT-100's features and cutting capabilities on various materials.
Video: The Hercules RK-BAT-100 cutting through material with ease, demonstrating its efficiency.
8. Blade Sharpening
The RK-BAT-100 features a built-in sharpening stone to maintain optimal blade performance. Sharpen the blade regularly, especially when you notice a decrease in cutting efficiency.
- Ensure the cutter is powered off and the battery is removed for safety.
- Locate the sharpening stone mechanism, usually near the blade guard.
- Follow the specific instructions in your product's included manual for engaging the sharpening stone. Typically, this involves pressing a lever or button while briefly running the blade.
- Run the blade for a few seconds while the sharpening stone is engaged. Do not over-sharpen.
- Inspect the blade for sharpness. Repeat if necessary.

Image: Underside of the Hercules RK-BAT-100, showing the blade and sharpening mechanism.
9. Maintenance
Regular maintenance ensures the longevity and optimal performance of your rotary cutter.
- Cleaning: After each use, disconnect the battery and use a soft brush or cloth to remove any fabric fibers, dust, or debris from the blade, blade guard, and motor vents.
- Lubrication: Periodically apply a small amount of machine oil (provided) to the blade shaft and other moving parts as recommended in the full product manual.
- Blade Replacement: If the blade becomes dull beyond effective sharpening or is damaged, replace it with a genuine Hercules replacement blade. Refer to the full manual for specific blade replacement instructions.
- Battery Care: Store batteries in a cool, dry place. Do not store fully discharged batteries for extended periods.
10. Troubleshooting
If you encounter issues with your Hercules RK-BAT-100, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Cutter does not turn on. | Battery not charged or improperly installed. | Ensure battery is fully charged and correctly inserted. |
| Blade not cutting effectively. | Dull blade; debris caught in blade mechanism. | Sharpen the blade using the built-in sharpener. Clean any debris from the blade and guard. Replace blade if necessary. |
| Cutter jams during operation. | Material too thick; blade dull; excessive pressure. | Reduce material thickness. Sharpen or replace blade. Apply less pressure and allow the blade to do the work. |
| Unusual noise or vibration. | Loose components; foreign object; worn parts. | Turn off and disconnect battery. Inspect for loose screws or foreign objects. If problem persists, contact support. |
11. Specifications
| Feature | Detail |
|---|---|
| Brand | Hercules |
| Model Number | RK-BAT-100 |
| Blade Material | Carbide |
| Blade Type | 4-inch Octagonal |
| Speed Settings | 5-Speed |
| Power Source | Cordless DC, Rechargeable Li-ion Battery |
| Handle Material | Plastic |
| UPC | 855170001926 |
12. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your product or contact the seller, Universal Sewing Supply. Keep your purchase receipt as proof of purchase.
Return Policy: The standard return policy for this product is 30 days from the date of purchase. Please check with your retailer for specific return terms and conditions.