Husqvarna Cordless Core Drill Motor DM540i 3 Inch Handheld 4 Inch Stand 36V Bare Tool (2 Speed 4450 RPM Wet Dry Reinforced Concrete Coring)

Husqvarna DM540i 36V Cordless Handheld Battery Core Drill Motor

The Husqvarna DM540i (970513401) is a 36V BLi-X battery-powered core drill motor engineered for handheld wet and dry coring up to 3 inches in diameter and rig-mounted drilling up to 4 inches with the DS 150 stand. Powered by an advanced brushless motor with 2 mechanical and electronic speeds reaching 4,450 RPM, this 10.8-pound portable diamond drill delivers high torque for penetrating reinforced concrete, brick, and cinder block. Equipped with dual 1-1/4"-7 UNC outer and G 1/2" inner spindle threads, a 60 mm mounting collar, an integrated Gardena water connection rated to 43.5 PSI, and Husqvarna Fleet Services connectivity, it provides maximum maneuverability for MEP contractors working under sinks, in narrow corners, or overhead.

**Battery and charer sold seperately.

Best Used For:

• Plumbing & HVAC Utility Hole Drilling: Coring 1 to 3-inch penetrations through reinforced concrete walls and floor slabs for water supply lines, PVC drains, and AC refrigerant lines.
• Electrical Conduit & Gang Box Rough-In: Drilling clean dry masonry cutouts in brick and cinder block for junction boxes, conduit passages, and switch enclosures.
• Confined Overhead & Under-Sink Coring: Executing tight-clearance handheld drilling in restricted spaces where corded power cables and heavy drill rigs cannot fit.

Key Performance & Safety Features

• High-Torque Brushless Motor Engine: Provides efficient current transfer and consistent rotational speed under heavy load without carbon brush maintenance.
• Dual 2-Speed Gearbox Controls: Matches spindle RPM from 1,400 RPM in low gear to 4,450 RPM in high gear for small and medium bit diameters.
• Integrated Wet & Dry Coring Ports: Built-in Gardena male water connector accepts up to 43.5 PSI fluid pressure for slurry management and thermal control.
• Dual Thread Spindle Connection: Native 1-1/4"-7 UNC male outer and G 1/2" female inner spindle accepts standard commercial diamond core bits.
• 60 mm Rig Mounting Collar: Standardized 2.36-inch gear housing collar attaches directly to the Husqvarna DS 150 drill stand for rig-mounted stability.
• Husqvarna Fleet Services Connectivity: Transmits machine location, operational hours, and maintenance alerts wirelessly via Bluetooth telematics.

What's Included

• (1) Husqvarna DM 540i Battery Core Drill Motor (970513401)
• (1) Adjustable 360° Front Auxiliary Handle
• (1) Gardena Male Water Hose Adapter
• (1) G 1/2" Inner to 1-1/4"-7 UNC Outer Spindle Adapter
• (1) Heavy-Duty Protective Carrying Case

Technical Specifications

Pro-Tip: Select Gear 2 (4,450 RPM) when drilling small diameters under 1-1/2 inches to maximize diamond segment self-sharpening, and switch to Gear 1 (1,400 RPM) for 3-inch bits to maintain high torque without overheating the battery pack.