Dedra DED7839 boorhamer

The Dedra DED7839 rotary hammer is designed for drilling and chiseling in concrete and masonry. It combines a robust motor with selectable operating modes to perform rotary drilling, hammer drilling and light chiseling tasks. The tool has a compact body and an ergonomically shaped handle that helps maintain control during prolonged work. Supplied as a single unit per pack, the rotary hammer is intended for repetitive construction and renovation activities where reliable impact performance is required.

Advantages

The rotary hammer delivers high impact energy and steady drilling performance for concrete and masonry. Multiple operating modes allow rapid switching between rotation-only, hammering with rotation and chiseling, providing versatility for different tasks. An ergonomic grip and balanced weight distribution reduce operator fatigue during extended use. The tool's durable construction is suited to heavy-duty environments and frequent use.

Suitable for

• Drilling holes in concrete and brick for anchors and rebar
• Chiseling and light demolition work in masonry
• Installing electrical boxes, plumbing sleeves and conduit in walls
• Professional construction tasks and advanced DIY renovation work

Key specifications

• Function modes: rotation, hammer drilling, chiseling
• Purpose: drilling and chiseling in concrete, brick and masonry
• Ergonomic handle for improved grip and control
• Robust motor designed for continuous operation under load
• Single-piece pack, ready for immediate use on site

How to use

Select the appropriate operating mode for the required task: rotation-only for wood or metal, hammer drilling for concrete and masonry, or chiseling for removal tasks. Fit a compatible SDS drill bit or chisel, secure the tool with both hands, and position the bit perpendicular to the work surface. Start at low speed to center the hole, then increase speed and apply steady, moderate pressure while allowing the tool's hammer action to perform the cutting. For chiseling, use controlled short strokes and adjust the angle as needed.

Recommendations

Use appropriate personal protective equipment, including eye protection, hearing protection and dust mask. Choose the correct bit type and size for the material and task. Allow the motor to cool during prolonged continuous operation and inspect bits regularly for wear. When changing accessories or performing maintenance, disconnect the tool from the power source.