Husqvarna DM 400 Specs, Capacity & Compatibility

VERIFIED SPECIFICATION · ACTIVE · Last verified 2026-08-22

14" stand-mounted rig concrete core drill

Maximum diameter: 14"
Power: 4.29 hp
Voltage: Unknown / Not specified by manufacturer
Speeds: Optimized multi-speed, confirm RPM table on US page
Spindle: 1-1/4"-7 UNC
Handheld: No
Stand capable: Yes
Wet drilling: Yes
Dry drilling: Yes
Safety clutch: Unknown / Not specified by manufacturer
Machine weight: Not clearly specified by manufacturer

Values are taken from manufacturer documentation and official manuals where cited in Sources. Optimized multi-speed, confirm RPM table on US page

Find Compatible Bits Build Complete System Best Core Drills

Not sold on Amazon. Available through authorized Husqvarna dealers.

Decision Summary

Specification analysis for Husqvarna DM 400 based on verified manufacturer manuals and operator documentation.

✓ Best Suited For

Medium/heavy professional stand coring up to 14".

✕ Who Should Skip

You need a non-proprietary chuck machine or bare-tool budget setup.

Key Operational Realities

Stand sold as system components, confirm package.

Verified specification table

Specification	Value	Source status
Maximum diameter	14"	Manufacturer verified
Voltage	Unknown / Not specified by manufacturer	not listed
Power	4.29 hp	Manufacturer verified
Low gear / min RPM	Unknown / Not specified by manufacturer	not listed
High gear / max RPM	Unknown / Not specified by manufacturer	not listed
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	Yes	Manufacturer verified
Reinforced concrete	Yes	Manufacturer verified
Machine / net weight	Not clearly specified by manufacturer	not listed

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 14"
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 14"
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 48-17-5007 0.75″ Diamond Core Bit

SPEC-MATCHED 🟡

Connection 1-1/4"-7 UNC Female ✓
Diameter 0.75" ✓
Machine capacity 14"
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 48-17-5009 0.875″ Diamond Core Bit

SPEC-MATCHED 🟡

Connection 1-1/4"-7 UNC Female ✓
Diameter 0.875" ✓
Machine capacity 14"
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

BLUEROCK Wet 1″ Diamond Core Bit

SPEC-MATCHED 🟡

Connection 1-1/4"-7 UNC Female ✓
Diameter 1" ✓
Machine capacity 14"
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 14"
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 14"
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

Husqvarna VARI-DRILL Dry D20 Core Bits 1-1/4″

SPEC-MATCHED 🟡

Connection 5/8"-11 UNC & 1-1/4"-7 UNC ✓
Diameter 1.25" ✓
Machine capacity 14"
Method Dry
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

Optimized multi-speed, confirm RPM table on US page

Unknown / Not specified by manufacturer

Open RPM Calculator

Stand / adapter compatibility

Stand model: Unknown / Not specified by manufacturer
Stand compatibility: Stand motor, matching stand required
OEM / documented stands:
- husqvarna-ds-500, Data incomplete (Decision-critical PARTIAL data (e.g. unlocked spindle/RPM/capacity) blocks VERIFIED FIT.)
Adapter requirements: Unknown / Not specified by manufacturer
Adapter support: Unknown / Not specified by manufacturer

Water / slurry / dust

Documented water / collection:
- husqvarna-wsr-100, OEM verified WSR fits-to includes DM 400
- husqvarna-wsr-300, OEM verified WSR300 for larger stand motors
- husqvarna-wsr-300, OEM verified (MAX 11.81") Collection ring pairing, bit OD must satisfy diameter_bound_op (not universal by brand).
Dust management: missing-data, no stored OEM edge.

Jobsite Setup & Operation

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

Water / slurry / dust

Documented water / collection:
- husqvarna-wsr-100, OEM verified WSR fits-to includes DM 400
- husqvarna-wsr-300, OEM verified WSR300 for larger stand motors
- husqvarna-wsr-300, OEM verified (MAX 11.81") Collection ring pairing, bit OD must satisfy diameter_bound_op (not universal by brand).
Dust management: missing-data, no stored OEM edge.

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 2026-08-22.

Read Our Research Methodology · Report a Specification Correction