AEG 4935442840
AEG Hammer Drill 750W (Model 4935442840) Instruction Manual
Model: 4935442840 | Brand: AEG
1. Important Safety Information
Before operating the AEG Hammer Drill, carefully read and understand all safety warnings, instructions, illustrations, and specifications provided in this manual. Failure to follow all instructions may result in electric shock, fire, and/or serious injury. Keep this manual for future 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. Do not expose power tools to rain or wet conditions.
- Personal Safety: Always wear eye protection. Use hearing protection when operating the hammer drill. Dress properly; do not wear loose clothing or jewelry. Secure long hair.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Disconnect the plug from the power source before making any adjustments, changing accessories, or storing power tools.
2. Product Overview
The AEG Hammer Drill 750W is a versatile corded power tool designed for drilling in various materials including wood, metal, and masonry. It features a robust 750W motor, a 13mm chuck, and an adjustable side handle for enhanced control and comfort during operation.

Image 2.1: Front view of the AEG Hammer Drill 750W, showcasing its ergonomic design, main handle, side handle, and 13mm keyed chuck.
Key Features:
- Powerful Motor: 750W input power for demanding tasks.
- Variable Speed: Up to 3000 RPM for optimal drilling in different materials.
- Hammer Function: 23200 BPM impact rate for efficient drilling in masonry.
- High Torque: Maximum 27 Nm for effective screwdriving and drilling.
- Adjustable Side Handle: Provides improved control and reduces user fatigue.
3. Setup
3.1 Attaching the Side Handle
The adjustable side handle provides additional stability and control. To attach, loosen the handle grip, slide it over the drill's chuck housing, and position it to your preferred angle. Tighten the grip firmly to secure the handle in place.
3.2 Inserting and Removing Drill Bits
- Ensure Safety: Always unplug the drill from the power source before changing bits.
- Open Chuck: Use the chuck key to rotate the chuck jaws counter-clockwise until they are wide enough to insert the drill bit.
- Insert Bit: Insert the drill bit fully into the chuck, ensuring it is centered.
- Tighten Chuck: Use the chuck key to rotate the chuck jaws clockwise until the bit is securely clamped. Tighten firmly in all three keyholes for maximum grip.
- Remove Bit: Reverse the tightening process using the chuck key.
3.3 Power Connection
Connect the drill's power cord to a suitable AC power outlet. Ensure the voltage of the power supply matches the specifications listed on the drill's rating plate.
4. Operating Instructions
4.1 Powering On/Off and Speed Control
- To Start: Press the trigger switch. The drill speed is variable depending on how far the trigger is pressed.
- To Stop: Release the trigger switch.
- Lock-On Button: For continuous operation, press the trigger and then press the lock-on button. To release, press the trigger again.
4.2 Selecting Drilling Mode (Rotary vs. Hammer)
The drill features a mode selector switch, typically located on the top of the drill housing, to switch between rotary drilling and hammer drilling modes.
- Rotary Drilling (Drill Symbol): For drilling in wood, metal, plastics, and for screwdriving.
- Hammer Drilling (Hammer Symbol): For drilling in concrete, brick, and other masonry materials.
4.3 Drilling in Different Materials
Always select the appropriate drill bit for the material and ensure it is sharp and in good condition.
4.3.1 Drilling Metal
Use high-speed steel (HSS) drill bits. Apply light, consistent pressure. Use cutting oil for harder metals to prolong bit life and improve cutting efficiency. Maximum drilling capacity in steel is 13 mm.

Image 4.1: The AEG Hammer Drill in rotary mode, drilling into a metal stud frame. Note the secure grip with the side handle.
4.3.2 Drilling Wood
Use wood-specific drill bits (e.g., brad point, spade, or auger bits). Start with a slow speed to prevent splintering, then increase as needed. Maximum drilling capacity in wood is 30 mm.

Image 4.2: The AEG Hammer Drill in rotary mode, drilling into a wooden beam. The user maintains a firm two-handed grip.
4.3.3 Drilling Masonry (Concrete, Brick)
Switch to hammer drilling mode and use carbide-tipped masonry drill bits. Apply firm, steady pressure. Do not force the drill; let the hammer action do the work. Maximum drilling capacity in concrete is 16 mm.

Image 4.3: The AEG Hammer Drill in hammer mode, drilling into a brick wall. Proper safety gloves are worn by the user.
5. Maintenance
Regular maintenance ensures the longevity and safe operation of your hammer drill. Always unplug the tool before performing any maintenance.
- Cleaning: Keep the ventilation openings clear and free from dust. Use a soft brush or compressed air to clean the tool. Do not use water or chemical cleaners.
- Power Cord Inspection: Regularly inspect the power cord for any damage, cuts, or fraying. If damaged, have it replaced by a qualified service technician.
- Chuck Maintenance: Keep the chuck jaws clean and lightly lubricated to ensure smooth operation and secure bit gripping.
- Storage: Store the drill in a dry, secure place, out of reach of children.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Drill does not start | No power supply; Damaged power cord; Faulty switch | Check power outlet and cord; Inspect power cord for damage; Contact service center if switch is faulty. |
| Loss of power during operation | Overload; Insufficient power supply | Reduce pressure on the drill; Check power supply for adequate voltage. |
| Excessive vibration or noise | Loose drill bit; Worn components | Ensure drill bit is securely tightened; Contact service center for inspection. |
| Drill bit not cutting effectively | Dull or incorrect drill bit; Incorrect drilling mode | Replace with a sharp, appropriate drill bit; Ensure correct mode (rotary/hammer) is selected. |
7. Specifications
| Feature | Specification |
|---|---|
| Brand | AEG |
| Model Number | 4935442840 |
| Power Input | 750 W |
| Power Output | 375 W |
| Power Source | AC |
| Maximum Rotational Speed | 3000 RPM |
| Impact Rate | 23200 BPM |
| Maximum Torque | 27 Nm |
| Chuck Capacity | 13 mm |
| Drilling Capacity (Wood) | 30 mm |
| Drilling Capacity (Steel) | 13 mm |
| Drilling Capacity (Concrete) | 16 mm |
| Item Weight | 1.9 kg (4.18 lbs) |
| Included Components | Hammer Drill, Side Handle |
| Special Feature | Portable |
| GTIN | 04002395247868 |
8. Warranty and Support
AEG provides a comprehensive warranty for its power tools. Please refer to the specific terms and conditions for your region.

Image 8.1: Warranty details indicating 6 years on tools and 3 years on batteries, chargers, and lasers, subject to online registration within 30 days of purchase.
For warranty claims, technical assistance, or spare parts, please contact your local AEG service center or authorized dealer. Spare parts for this model are available for a duration of 5 years within the EU.
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.

