STANLEY STHM5KH
STANLEY STHM5KH 1010W 5Kg Corded Hex Chipping Hammer Instruction Manual
Model: STHM5KH
1. Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your STANLEY STHM5KH 1010W 5Kg Corded Hex Chipping Hammer. Please read this manual thoroughly before using the tool and keep it for future reference.
The STANLEY STHM5KH is a powerful corded hex chipping hammer designed for light demolition, surface preparation, and chiselling tasks. It features a 1010W motor, 8.5J impact energy, and an anti-vibration handle for user comfort.

Image: The STANLEY STHM5KH Hex Chipping Hammer, highlighting its 1010W power, 8.5J impact energy, 2900 BPM impact rate, 220V voltage, 60Hz frequency, and 6.1 Kg weight.
2. Safety Information
Always prioritize safety when operating power tools. Failure to follow safety instructions can result in serious injury.
- Eye Protection: Always wear safety glasses or goggles to protect against flying debris.
- Ear Protection: Use ear defenders or earplugs to prevent hearing damage from prolonged noise exposure.
- Respiratory Protection: Wear a dust mask, especially when working in dusty environments, to prevent inhalation of harmful particles.
- Hand Protection: Wear sturdy gloves to protect hands from vibrations, abrasions, and impacts.
- Body Protection: Wear appropriate work clothing, such as a jacket, to protect your body from debris and potential hazards.
- Work Area: Ensure the work area is well-lit, clear of obstructions, and free from unauthorized personnel.
- Electrical Safety: Inspect the power cord for damage before each use. Do not operate in wet conditions.
- Secure Workpiece: Always ensure the material being worked on is stable and secured.
Video: This video demonstrates the STANLEY STHM5KH Chipping Hammer in action, showcasing its features and proper usage, including the importance of safety gear.
3. Product Components
The STANLEY STHM5KH Chipping Hammer comes with the following components:
- Main Unit (Chipping Hammer)
- 1 Chisel
- Side Handle
- Grease Cap Opener
- Kitbox

Image: Diagram illustrating the Tool Sleeve (designed to protect the chisel or bit) and the Barrel Cover (protective casing for internal components) of the chipping hammer.

Image: Diagram illustrating the Lube Oil-Injection Inlet (used to lubricate internal components) and the Handle (provides a grip for comfortable use) of the chipping hammer.

Image: Diagram illustrating the Switch (controls the tool's operation) of the chipping hammer.
4. Setup and Assembly
4.1 Attaching the Chisel
- Ensure the tool is unplugged from the power source.
- Clean the shank of the chisel and apply a thin layer of grease.
- Insert the chisel into the 17mm Hex Chuck until it locks securely. Pull on the chisel to ensure it is properly seated.

Image: A close-up view of the 17mm Hex Chuck with a chisel securely inserted, ready for operation.
4.2 Attaching the Side Handle
- Loosen the side handle clamp.
- Slide the side handle onto the barrel of the chipping hammer.
- Adjust the handle to a comfortable and secure position for optimal control.
- Tighten the clamp firmly to secure the side handle. The 360-degree side handle mechanism allows for versatile positioning.

Image: The STANLEY STHM5KH Chipping Hammer with its adjustable side handle attached, providing enhanced grip and control during use.
5. Operating Instructions
5.1 General Operation
- Ensure all safety precautions are followed and appropriate personal protective equipment (PPE) is worn.
- Plug the chipping hammer into a suitable 240V power outlet.
- Hold the tool firmly with both hands, utilizing the main handle and the side handle for maximum control.
- Position the chisel tip against the material to be chipped or demolished.
- Press the ON/OFF rocker switch to start the tool.
- Apply steady pressure and allow the tool's 8.5J impact energy and 2900 BPM to perform the work. Avoid excessive force.
- To stop the tool, release the ON/OFF rocker switch.

Image: A close-up view of the ON/OFF rocker switch on the STANLEY STHM5KH Chipping Hammer, which controls the tool's operation.
5.2 Applications
The STHM5KH is suitable for:
- Light demolition of concrete, brick, and masonry.
- Chiselling and breaking up tiles.
- Surface preparation tasks.

Image: A worker demonstrating the use of the STANLEY STHM5KH Chipping Hammer for light demolition work on a concrete surface.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your chipping hammer.
- Cleaning: After each use, clean the tool to remove dust and debris. Use a dry cloth; do not use solvents.
- Lubrication: Regularly lubricate the internal components via the Lube Oil-Injection Inlet. The manufacturer recommends refueling every 30 hours of operation. Use the provided grease cap opener to access the inlet.
- Chisel Maintenance: Keep chisels sharp and clean. Replace worn or damaged chisels promptly.
- Cord Inspection: Periodically inspect the power cord for cuts, fraying, or other damage. Replace damaged cords immediately.
- Storage: Store the tool in its kitbox in a dry, secure location, away from children and moisture.

Image: A close-up view of the Lube Oil-Injection Inlet on the STANLEY STHM5KH Chipping Hammer, indicating the point for lubrication.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start | No power supply; damaged cord; faulty switch. | Check power connection and outlet. Inspect cord for damage. If cord or switch is faulty, contact customer service. |
| Reduced impact force | Insufficient lubrication; worn chisel; internal wear. | Lubricate the tool as per maintenance instructions. Replace worn chisel. If problem persists, contact customer service. |
| Excessive vibration | Loose components; internal issue. | Ensure all external components (like side handle) are secure. If vibration is unusual or excessive, discontinue use and contact customer service. |
For issues not listed here or if solutions do not resolve the problem, please contact STANLEY customer service.
8. Specifications
- Brand: STANLEY
- Model Number: STHM5KH
- Power Source: Corded Electric
- Maximum Power: 1010 Watts
- Voltage: 240 Volts
- Amperage: 14 Amps
- Impact Energy: 8.5 J
- Beats Per Minute (BPM): 2900 BPM
- Tool Holder: Hex (17mm)
- Item Weight: 6 Kilograms
- Product Dimensions: 25 x 9 x 23.8 cm
- Material: Metal, Plastic
- Included Components: Main Unit, 1 Chisel, Side Handle, Grease Cap Opener, Kitbox
9. Warranty and Support
Your STANLEY STHM5KH Chipping Hammer comes with a 1-year warranty provided by the manufacturer from the date of purchase.
For any warranty-related issues, product feedback, or technical support, please contact STANLEY customer care:
- Phone: 1860-425-1111 (10 AM to 5 PM, Monday to Friday, except government holidays)
- Email: SBD-CUSTOMERCOMMUNICATIONS@SBDINC.COM
- WhatsApp: +91 96060 55835
- Authorized Service Centers: Over 500+ locations available.

Image: STANLEY Total Care contact information, detailing phone number, email, WhatsApp, and service network for customer support.
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