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DEWALT D25831K 12 lb SDS Max Demolition Hammer

Name: DEWALT D25831K 12 lb SDS Max Demolition Hammer
Brand: DeWalt
SKU: WOR-TOO-1209
Price: 67.15 USD
Availability: InStock
Rating: 5.0 (2 reviews)

5.0 (2)

$149.00 $67.15

The DEWALT D25831K 12 lb SDS Max demolition hammer delivers 8 joules of impact energy from a 13.5-amp motor with Active Vibration Control for concrete and masonry demolition.

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Pair withDEWALT D25851K 12 lb Spline Demolition Hammer with SHOCKS Vibration Control$67.15

Categories : tools

SKU : WOR-TOO-1209

Description

The DEWALT D25831K is a 12 lb SDS Max demolition hammer built for concrete, masonry, and tile removal. Its 13.5-amp motor and 8-joule impact energy give you serious chipping power, while Active Vibration Control keeps the handle feedback down to 8.3 m/s² so you can work longer without your hands going numb. This is a tool for contractors and ambitious DIYers who regularly take on foundation breaks, wall channeling, and plaster or tile removal.

DEWALT D25831K SDS Max Demolition Hammer: Power and Control

The 8-joule impact energy and Constant Speed Under Load electronics keep the chipping rate steady even when you hit dense aggregate. The electronic variable speed dial lets you reduce output for brittle materials like tile or old plaster, and the rocker switch stays on without locking a finger in place on long runs.

Vibration Control and Handling

Active Vibration Control reduces handle vibration to 8.3 m/s². The side handle rotates 360° and adjusts 150°, so you can brace the tool properly on walls, floors, and ceilings. The slim body and low vibration make sustained overhead work more manageable.

Overheating? What to Check

Sustained heavy chipping can trigger the tool's thermal/overload protection. If your D25831K shuts down, let it cool for 10–15 minutes, check the vent slots for dust, and make sure you're not pressing too hard. Keep the motor working at its own pace, and take a short break during extended demolition. If it cuts out repeatedly, the carbon brushes or internal wiring may need inspection.

Use sharp SDS Max bits. A dull chisel creates more heat and vibration. Match the chisel width to the task—narrower points for channeling, broad chisels for tile and plaster removal.

Features

8 joules of impact energy breaks concrete and masonry fast.
13.5-amp motor with Constant Speed Under Load keeps chipping consistent.
Active Vibration Control reduces handle vibration to 8.3 m/s² for long shifts.
Variable speed dial lets you dial down on brittle surfaces.
Rotating side handle and rocker switch improve control on ceilings and walls.
Model: D25831K
Power: 13.5 A / 120 V AC
Handle: 360° rotating, 150° adjustable side handle
Switch: Rocker switch
Weight: 12.0 lb (5.4 kg)
Vibration: 8.3 m/s² (handle)
Dimensions: 22.0 x 10.0 x 7.5 in (55.9 x 25.4 x 19.1 cm)
Shank Type: SDS Max
Speed Dial: Electronic variable speed
Product Type: SDS Max Demolition Hammer
Impact Energy: 8 J (5.9 ft-lb)
Seller: Workbench World
MPN: D25831K

Product Details

Built for Full-Day Demolition

The D25831K is designed to make sustained concrete work less punishing. Active Vibration Control and a long rocker switch keep you driving the chisel instead of wrestling the tool. The variable-position side handle helps you keep the bit square to the work on walls, floors, and overhead.

Managing Heat on Heavy Jobs

Any demolition hammer can heat up when it's pushing through hard aggregate. You can reduce the chance of thermal shutdown by letting the motor do the work, keeping the vents clear, and taking a short cool-down break every 15–20 minutes. Treat those few minutes as a maintenance pause: check the bit, hose out the dust, and stretch your arms.

Bit Selection Matters

Use sharp SDS Max bits. A dull chisel creates more heat and vibration. Match the chisel width to the task—narrower points for channeling, broad chisels for tile and plaster removal.

Frequently Asked Questions

Why does my D25831K overheat and shut down?

Thermal protection kicks in during extended heavy chipping. Let the tool cool, clear the vents, and reduce downforce. If it cuts out repeatedly, have the brushes and wiring checked.

What bits does the D25831K use?

It uses SDS Max bits, including chisels, points, and spades. Do not use standard SDS or spline bits without an adapter.

Can I adjust the impact energy for tile removal?

Yes, the variable speed dial lets you lower the chipping rate for brittle material.

Is the side handle adjustable?

The side handle rotates 360° and can be positioned at 150° of tilt for ceiling and wall work.

Does it have a case?

The D25831K kit includes a heavy-duty kit box. Contact our support team if you need bundle contents confirmed before ordering.

Customer Reviews

2

5.0

John Davidson

Verified

Powerful

Powered and strong.

5.0

ed_the_tool

Verified

Demolition workhorse

I've used this on a few demolition jobs. It has plenty of power to break through concrete. The vibration control helps with fatigue. It's heavy, but that's expected. The carrying case is sturdy. I wish the price were lower, but quality comes with a cost.

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DEWALT D25831K 12 lb SDS Max Demolition Hammer

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Description

DEWALT D25831K SDS Max Demolition Hammer: Power and Control

Vibration Control and Handling

Overheating? What to Check

Features

Built for Full-Day Demolition

Managing Heat on Heavy Jobs

Bit Selection Matters

Frequently Asked Questions

Customer Reviews

John Davidson

Powerful

ed_the_tool

Demolition workhorse

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30-Day Returns

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