Husqvarna DM 406 H Specs, Capacity & Compatibility

VERIFIED SPECIFICATION · ACTIVE · Last verified 2026-08-21

25.6" stand-mounted rig concrete core drill

Maximum diameter: 25.6"
Power: 12.5 hp
Voltage: Unknown / Not specified by manufacturer
Speeds: 120 / 1400 RPM
Spindle: 1-1/4"-7 UNC
Handheld: No
Stand capable: Yes
Wet drilling: Yes
Dry drilling: No
Safety clutch: Unknown / Not specified by manufacturer
Machine weight: 35 lb

Values are taken from manufacturer documentation and official manuals where cited in Sources. 120 / 230 / 340 / 580 / 980 / 1400 RPM

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Decision Summary

Specification analysis for Husqvarna DM 406 H based on verified manufacturer manuals and operator documentation.

✓ Best Suited For

Heavy-duty hydraulic stand coring approaching 24, 25.6" in reinforced concrete.

✕ Who Should Skip

You need corded/cordless electric only.

Verified specification table

Specification	Value	Source status
Maximum diameter	25.6"	Manufacturer verified
Voltage	Unknown / Not specified by manufacturer	not listed
Power	12.5 hp	Manufacturer verified
Low gear / min RPM	120	Manual verified
High gear / max RPM	1400	Manual verified
Spindle	1-1/4"-7 UNC	Manual verified
Handheld	No	Manual verified
Stand capable	Yes	Manual verified
Safety clutch	Unknown / Not specified by manufacturer	not listed
Water feed	Yes	Manual verified
Wet drilling	Yes	Manufacturer verified
Dry drilling	No	Manufacturer verified
Reinforced concrete	Yes	Manufacturer verified
Machine / net weight	35 lb	Manufacturer verified

Source links appear in Sources & Verification below, not invented ratings.

Bit & Rig Compatibility

Spindle interface, bit connection standards, and rig pairing documentation.

Spindle Connection: 1-1/4"-7 UNC

This machine utilizes a 1-1/4"-7 UNC spindle. Diamond core bits matching this connection thread directly without adapters. Mismatched threads require a documented rigid arbor adapter.

Compatible core bits

Mechanical fit is not the same as a safe operating-speed fit. Bit published max RPM wins when lower than the machine gear.

SPEC-MATCHED 🟡

Hilti SPX-L Heavy Rebar Wet Core Bits 1/2″

SPEC-MATCHED 🟡

Connection Hilti BL Quick-Release / 1-1/4"-7 UNC ✓
Diameter 0.5" ✓
Machine capacity 25.6"
Method Wet
OEM pairing Not OEM-documented
Mechanical fit Aligned
Operating speed Unknown / incomplete RPM data
OEM fit Not OEM-documented

View Bit Details Check RPM

Milwaukee 48-17-5006 0.625″ Diamond Core Bit

SPEC-MATCHED 🟡

Connection 1-1/4"-7 UNC Female ✓
Diameter 0.625" ✓
Machine capacity 25.6"
Method Wet
OEM pairing Not OEM-documented
Mechanical fit Aligned
Operating speed Within published range
OEM fit Not OEM-documented

View Bit Details Check RPM

Milwaukee 48-17-5007 0.75″ Diamond Core Bit

SPEC-MATCHED 🟡

Connection 1-1/4"-7 UNC Female ✓
Diameter 0.75" ✓
Machine capacity 25.6"
Method Wet
OEM pairing Not OEM-documented
Mechanical fit Aligned
Operating speed Within published range
OEM fit Not OEM-documented

View Bit Details Check RPM

Milwaukee 48-17-5009 0.875″ Diamond Core Bit

SPEC-MATCHED 🟡

Connection 1-1/4"-7 UNC Female ✓
Diameter 0.875" ✓
Machine capacity 25.6"
Method Wet
OEM pairing Not OEM-documented
Mechanical fit Aligned
Operating speed Within published range
OEM fit Not OEM-documented

View Bit Details Check RPM

BLUEROCK Wet 1″ Diamond Core Bit

SPEC-MATCHED 🟡

Connection 1-1/4"-7 UNC Female ✓
Diameter 1" ✓
Machine capacity 25.6"
Method Wet
OEM pairing Not OEM-documented
Mechanical fit Aligned
Operating speed Unknown / incomplete RPM data
OEM fit Not OEM-documented

View Bit Details Check RPM

Hilti SPX-L Heavy Rebar Wet Core Bits 1″

SPEC-MATCHED 🟡

Connection Hilti BL Quick-Release / 1-1/4"-7 UNC ✓
Diameter 1" ✓
Machine capacity 25.6"
Method Wet
OEM pairing Not OEM-documented
Mechanical fit Aligned
Operating speed Unknown / incomplete RPM data
OEM fit Not OEM-documented

View Bit Details Check RPM

Milwaukee 48-17-5010 1″ Diamond Core Bit

SPEC-MATCHED 🟡

Connection 1-1/4"-7 UNC Female ✓
Diameter 1" ✓
Machine capacity 25.6"
Method Wet
OEM pairing Not OEM-documented
Mechanical fit Aligned
Operating speed Within published range
OEM fit Not OEM-documented

View Bit Details Check RPM

Diamond Products Core Bore Premium Black Wet Core Bits 1-1/2″

SPEC-MATCHED 🟡

Connection 1-1/4"-7 UNC Female ✓
Diameter 1.5" ✓
Machine capacity 25.6"
Method Wet
OEM pairing Not OEM-documented
Mechanical fit Aligned
Operating speed Unknown / incomplete RPM data
OEM fit Not OEM-documented

View Bit Details Check RPM

Find more compatible bits

RPM / gear guidance

120 / 230 / 340 / 580 / 980 / 1400 RPM

Documented RPM: 120 / 1400

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Stand / adapter compatibility

Stand model: DS 900 class (confirm current stand SKU)
Stand compatibility: Heavy stand required, DS 900 listed among related stands
OEM / documented stands:
- husqvarna-ds-900, Data incomplete (Hydraulic motor + stand plate not fully locked)
Adapter requirements: Hydraulic power pack required (e.g. PP series), not electric corded
Adapter support: Unknown / Not specified by manufacturer

Water / slurry / dust

No evidence-backed water or dust accessory edges stored for this motor yet, do not invent recommendations.

Jobsite Setup & Operation

Operational workflow, slurry/water management, mounting procedures, and operator safety.

Water / slurry / dust

No evidence-backed water or dust accessory edges stored for this motor yet, do not invent recommendations.

Ownership & Service

Serviceability not verified for this model yet, fields remain UNKNOWN (not “parts unavailable”).

Authoritative Sources & Verification

CoringSpec specifications are extracted directly from primary manufacturer documentation and operator manuals. We do not invent lab scores or extrapolate unverified ratings.

Verified Documentation

Research & Verification Standards: This equipment profile was audited and verified against primary manufacturer technical documentation by the CoringSpec Technical Editorial Team. Specifications confirmed active as of 2026-08-21.

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