Husqvarna DM 406 H – Core Drill Motors

The DM 406 H is a powerful hydraulic core drill designed for high-production, heavy-duty applications, capable of drilling holes up to 25.6 inches in diameter. With adjustable hydraulic speed during operation, it offers efficient, user-friendly performance for tasks like stitch drilling, deep holes, and pipe installations in reinforced concrete.

Description

Husqvarna DM 406 H – Hydraulic Power for Extreme Core Drilling

Built for Demanding Heavy-Duty Coring

The DM 406 H is Husqvarna’s most powerful hydraulic core drill, purpose-built for professionals who take on large-diameter, high-output drilling projects. Combining extreme torque, robust construction, and precise control, this system ensures consistent performance in the toughest conditions. Whether you’re cutting through reinforced concrete, creating pipe penetrations, or completing stitch drilling, the DM 406 H delivers unmatched strength and reliability.

Hydraulic Strength That Outperforms

With a maximum bit capacity of 25.6 inches, the DM 406 H handles deep and wide drilling tasks with ease. Its 125 hp hydraulic drill motor generates superior torque and stability, making it more efficient than traditional electric units. Furthermore, the adjustable hydraulic speed control allows operators to fine-tune performance mid-operation, ensuring smooth drilling through varying densities and materials. This combination of power and flexibility makes the DM 406 H a standout in the concrete coring equipment category.

Key highlights include:

  • Hydraulic system for consistent torque and reduced vibration
  • 25.6-inch maximum diameter capacity for large-scale holes
  • Speed adjustment during operation for full control
  • Rugged build that withstands intensive daily use

Efficiency Meets Versatility

Contractors rely on the DM 406 H because it balances brute force with precision. The compact frame makes transportation and positioning manageable, even in vertical or constrained applications. Moreover, its adaptability allows crews to use it for infrastructure development, structural modifications, or utility installations. As a core drill machine, it provides the flexibility needed for both large penetrations and accurate finishing work.

A Professional’s Choice for Reliability

The DM 406 H doesn’t just drill, it redefines what a hydraulic core drill rig can achieve. Its combination of durability, speed, and operator-focused controls means contractors complete jobs faster and with greater confidence. For companies expanding their concrete coring equipment lineup, this hydraulic powerhouse represents a long-term investment that consistently delivers results.

When you need power and precision in one package, the DM 406 H stands ready to perform—day after day, project after project.

DM 406 H 1 1/4" 7

Motor

Rated input power

125 hp

Power source

Hydraulic

Equipment

Drill bit diameter with stand, max

25.6 in

Recommended drill bit diameter, min

1.97 in

Drill bit diameter, max

26 in

Coolant

Wet

Transmission

Number of gearbox speeds

2

Spindle speed unloaded gear 1

340 rpm

Spindle speed unloaded gear 2

1,400 rpm

Product data

Water connector

R 1 / 2″

Water pressure, max

116 psi

Spindle thread, outer

1 1/4″ 7 UNC

Hydraulics

Hydraulic pressure, max

2,030 psi

Dimensions

Product size length

10.2 in

Product size width

8.3 in

Product size height

20.5 in

Weight

35 lbs

Packaging length (Calc)

22.047 in

Packaging width (Calc)

9.055 in

Packaging height (Calc)

15.551 in

Article gross weight (Calc)

46.297 lbs

Sound and noise

Sound power level, guaranteed (LWA)

113 dB(A)

Sound power level, measured

112 dB(A)

Sound pressure level at operators ear

98 dB(A)