1. Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Ferrex SDS 20V Cordless Rotary Hammer Drill. Please read this manual thoroughly before using the tool and keep it for future reference.
2. Safety Instructions
Always follow basic safety precautions to reduce the risk of fire, electric shock, and personal injury. Keep this manual handy for quick reference.
- Work Area Safety: Keep your 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.
- Electrical Safety: Power tool plugs must match the outlet. Never modify the plug in any way. Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges, and refrigerators.
- Personal Safety: Always wear eye protection. Use hearing protection when operating the tool for extended periods. Dress properly; do not wear loose clothing or jewelry. Keep hair, clothing, and gloves away from moving parts.
- Power Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Disconnect the battery pack from the power tool before making any adjustments, changing accessories, or storing power tools.
- Battery Tool Use and Care: Recharge only with the charger specified by the manufacturer. Use power tools only with specifically designated battery packs.
3. Package Contents
Carefully unpack your Ferrex SDS 20V Cordless Rotary Hammer Drill and check that all items are present and in good condition. If any items are missing or damaged, contact your retailer.
- 1 x Ferrex SDS 20V Cordless Rotary Hammer Drill
- 1 x Quick-Chuck (Keyless Chuck)
- 1 x User Manual
Note: Battery and charger are NOT included with this product and must be purchased separately.

Image: The Ferrex SDS 20V Cordless Rotary Hammer Drill, highlighting that the battery and charger are sold separately.
4. Product Overview
Familiarize yourself with the components of your Ferrex SDS 20V Cordless Rotary Hammer Drill before operation.

Image: A detailed view of the Ferrex SDS 20V Cordless Rotary Hammer Drill, showing its main components such as the chuck, mode selector, trigger, and handle.
- SDS-Plus Chuck: For quick and secure bit changes.
- Quick-Chuck (Keyless Chuck): Adapter for standard drill bits.
- Mode Selector Switch: To switch between drilling and hammer drilling functions.
- Trigger Switch: Activates the tool.
- Variable Speed Control: Integrated into the trigger for precise speed adjustment.
- Forward/Reverse Rotation Switch: Changes the direction of rotation.
- LED Work Light: Illuminates the work area.
- Soft Grip Handle: Provides comfortable and secure handling.
- Battery Port: For inserting the 20V battery pack (not included).
5. Setup
5.1 Battery Installation
- Ensure the battery pack is fully charged before use.
- Align the battery pack with the battery port on the tool.
- Slide the battery pack into the port until it clicks securely into place.
- To remove, press the battery release button and slide the battery pack out.
5.2 Bit Installation (SDS-Plus)
- Ensure the tool is switched off and the battery is removed.
- Pull back the SDS-Plus chuck collar.
- Insert the SDS-Plus drill bit into the chuck, twisting slightly until it locks into place.
- Release the collar. Pull on the bit to ensure it is securely seated.
5.3 Quick-Chuck (Keyless Chuck) Installation
For using standard drill bits, attach the Quick-Chuck adapter.
- Ensure the tool is switched off and the battery is removed.
- Insert the Quick-Chuck adapter into the SDS-Plus chuck as described in section 5.2.
- To insert a standard drill bit, twist the front collar of the Quick-Chuck counter-clockwise to open the jaws.
- Insert the drill bit and twist the collar clockwise to tighten the jaws securely around the bit.
6. Operating Instructions
6.1 Selecting Operating Mode
Use the mode selector switch to choose between drilling and hammer drilling functions:
- Drill Mode: For drilling into wood, metal, or plastic.
- Hammer Drill Mode: For drilling into concrete, masonry, or stone.
6.2 Powering On/Off and Speed Control
- To turn on the tool, press the trigger switch.
- The tool features stepless rotary speed control; the harder you press the trigger, the faster the tool operates.
- To turn off, release the trigger switch.
6.3 Forward/Reverse Rotation
The forward/reverse switch is located above the trigger. Push it left for forward rotation (drilling) and right for reverse rotation (removing screws or jammed bits).
6.4 LED Work Light
The integrated LED work light illuminates your work area automatically when the trigger is pressed. It also features an afterglow function, staying lit for a short period after the trigger is released.
6.5 Drilling Capacity
The maximum drilling capacities are:
- Concrete: 10 mm
- Steel: 8 mm
- Wood: 16 mm

Image: The Ferrex SDS 20V Cordless Rotary Hammer Drill being used to drill into a concrete block, demonstrating its hammer drilling capability.
7. Maintenance
Regular maintenance ensures optimal performance and extends the life of your tool.
- Cleaning: After each use, clean the tool with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners. Keep ventilation openings clear of dust and debris.
- Storage: Store the tool in a dry, secure place out of reach of children. Remove the battery pack before storage.
- Inspection: Periodically check for damaged parts, loose screws, or worn components. Have any damaged parts repaired by a qualified service technician.
8. Troubleshooting
If you encounter issues with your Ferrex SDS 20V Cordless Rotary Hammer Drill, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start. | Battery not charged or not properly inserted. | Ensure battery is fully charged and securely inserted. |
| Reduced power or performance. | Low battery charge. Incorrect mode selected. | Recharge battery. Verify correct mode (Drill/Hammer Drill) for the task. |
| Bit not rotating or slipping. | Bit not properly secured in chuck. Forward/Reverse switch in neutral or reverse. | Re-insert and secure bit. Ensure switch is in forward position. |
| Excessive vibration or noise. | Damaged bit. Loose components. | Replace damaged bit. Inspect tool for loose parts; if persistent, seek professional service. |
9. Specifications
| Feature | Specification |
|---|---|
| Brand | Ferrex |
| Model Number | SDS SDS 20V |
| Voltage | 20 Volt |
| Max. No-Load Speed | 0-900 min-1 (RPM) |
| Impact Rate | 0-5,000 min-1 (BPM) |
| Impact Energy | 1.2 Joule |
| Max. Torque | 12 Nm |
| Drilling Capacity (Concrete) | 10 mm |
| Drilling Capacity (Steel) | 8 mm |
| Drilling Capacity (Wood) | 16 mm |
| Chuck Type | SDS-Plus Connector, includes Keyless Quick-Chuck |
| Special Features | Compact, Cordless, LED Work Light with Afterglow, Stepless Rotary Speed Control, Soft Grip |
| Weight | 1.69 kg (without battery) |
10. Warranty and Support
For warranty information or technical support, please refer to the documentation provided at the point of purchase or contact Ferrex customer service. Keep your proof of purchase for any warranty claims.





