Husqvarna DM 400 – Core Drill Motors

The DM 400 is a durable electric core drill for medium to heavy-duty use, with a diameter range of 55–350 mm and max bit size of 14 inches. It features an aluminum motor housing, ergonomic handle, and Embedded Connectivity for real-time performance insights.

Description

Husqvarna DM 400: Built for Reliable, High-Performance Core Drilling

The DM 400 is a powerful and dependable electric core drill built for medium to heavy-duty coring in concrete and other hard materials. Designed with productivity, precision, and durability in mind, this robust drill motor is a trusted choice among professionals in the construction and infrastructure industries. With a rated input power of 4.29 hp and a recommended drilling diameter of 55–350 mm, the DM 400 stands out as a versatile and rugged performer on any jobsite.

Ideal for applications including ventilation, water evacuation, stitch drilling, angle drilling, and cutting near corners, the DM 400 delivers dependable performance while maintaining control and efficiency in every operation.

Engineered for Tough Handling and Long-Term Use

The DM 400 is built with a rugged aluminum motor housing that can withstand the harsh conditions of construction work. It offers superior protection from job impacts and rough handling while remaining relatively lightweight at just 31 lbs. A built-in carrying handle enhances portability and provides additional impact protection for the drill motor, making transport and handling easier and safer.

This core drill machine is capable of handling a wide range of bit sizes with a maximum drilling diameter of 14 inches when mounted on a stand. Its high torque and steady power output make it suitable for reinforced concrete, masonry, and brick, offering consistent results for demanding coring jobs.

Smart Technology with Embedded Connectivity

What sets the DM 400 apart is its integration with Embedded Connectivity—an advanced version of Husqvarna Fleet Services™. This technology allows operators and fleet managers to monitor usage, track machine health, and optimize maintenance scheduling directly from a connected platform. It transforms your concrete coring equipment from a standalone tool into a smarter, data-driven asset.

By using these insights, contractors can reduce downtime, extend machine life, and improve overall jobsite efficiency. It’s a feature that not only supports the work being done today but also enhances decision-making for future projects.

Why Choose the DM 400?

For professionals who need a balance of performance, durability, and smart functionality, the DM 400 delivers across the board. Its combination of rugged build quality, powerful performance, and connected features makes it an excellent choice for contractors who demand more from their core drill machines.

Whether you’re expanding your fleet or upgrading your existing concrete coring equipment, the DM 400 offers the confidence and capability to tackle medium to heavy coring with ease.

DM 400 100-120V | 1-ph | 50-60Hz | US | 1 1/4"

Motor

Rated input power

4.29 hp

Frequency

50-60 Hz

Voltage

100-120 V

Phases

1 ph

Power source

Corded

Equipment

Drill bit diameter with stand, max

14 in

Recommended drill bit diameter, min

2 in

Coolant

Wet

Transmission

Number of gearbox speeds

3

Spindle speed unloaded gear 1

420 rpm

Spindle speed unloaded gear 2

820 rpm

Spindle speed unloaded gear 3

1,250 rpm

Product data

Water connector

G 1 / 4″

Water pressure, max

43.5 psi

Spindle thread, outer

1 1/4″ 7 UNC

Dimensions

Product size length

21.5 in

Product size width

5.5 in

Product size height

7.3 in

Weight

31 lbs

Packaging length (Calc)

24.606 in

Packaging width (Calc)

10.039 in

Packaging height (Calc)

11.811 in

Article gross weight (Calc)

36.597 lbs

Sound and noise

Sound power level, guaranteed (LWA)

112 dB(A)

Sound power level, measured

110 dB(A)

Sound pressure level at operators ear

92 dB(A)