Makita
36V (18V×2) Brushless 40 mm SDS Max Rotary Hammer — 8.0 J, AWS Compatible
Part No: DHR400ZKN | Barcode: 88381874274
Makita’s DHR400ZKN is a 36V (18V×2) brushless SDS Max rotary hammer delivering 8.0 J of impact energy for heavy-duty concrete drilling up to 40 mm. Active Feedback-Sensing Technology (AFT) shuts down the motor if the bit jams, and Auto-Start Wireless System (AWS) compatibility enables automatic dust extractor activation.
8.0 J Impact Energy
40 mm Concrete Capacity
2,900 BPM
500 RPM
SDS Max Chuck
AWS Compatible
36V (18V×2)
Suitable For
Reinforced Concrete
Structural Concrete
Heavy Masonry
Core Drilling
Light Demolition
Chiselling
Key Features & Benefits
- 8.0 J Impact Energy — delivers genuine corded-class hammer performance for drilling large anchor holes, core penetrations, and fixings up to 40 mm in reinforced concrete.
- 36V (18V×2) Dual-Battery Power — runs on two standard 18V LXT batteries simultaneously, providing corded-equivalent power without needing a separate 36V battery platform.
- Active Feedback-Sensing Technology (AFT) — electronically shuts down the motor if the bit jams in reinforcement, preventing dangerous kickback and wrist injury.
- Anti-Vibration Technology (AVT) — brings vibration down to 5.0 m/s², significantly less than corded hammers in this class, extending safe working time and reducing fatigue.
- AWS Compatible — wirelessly starts a compatible Makita dust extractor when you pull the trigger, maintaining silica dust compliance without a separate switch.
- XPT Protection — improved sealing protects the motor and electronics from dust and moisture during outdoor and demolition work.
When to Use This Rotary Hammer
The DHR400ZKN is the cordless alternative to a corded SDS Max hammer for heavy concrete work. Use it for drilling large anchor holes (M16–M24), core drilling penetrations for pipe and conduit, and light chiselling tasks like concrete removal and channel chasing. The 8.0 J output matches many corded SDS Max hammers while the dual 18V battery system uses the same packs as your other LXT tools — no separate charger or battery platform needed. The AFT and AVT safety systems make it safer and more comfortable than corded equivalents. For light concrete drilling up to 24 mm, a standard SDS Plus hammer is sufficient; the DHR400ZKN is for when you need the 40 mm capacity and 8.0 J power of the SDS Max class.
Authorised Australian Dealer — This product is sourced directly from Makita Australia and is backed by full Australian manufacturer warranty and local support.
Product Specifications
| Specification | Value |
|---|---|
| Voltage | 36V (18V×2) |
| Impact Energy (EPTA) | 8.0 J |
| No-Load Speed | 250–500 RPM |
| Impacts Per Minute | 1,450–2,900 |
| Max Drilling — Concrete | 40 mm |
| Chuck Type | SDS Max |
| Operating Modes | 2 (Hammer Drill / Hammer) |
| Vibration (AVT) | 5.0 m/s² |
| Weight (bare) | 6.3 kg |
| Motor | Brushless |
| Safety | AFT (Active Feedback-Sensing) |
| Wireless | AWS Compatible |
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