Makita - (GMH04PLX) 80V max (40V max X2) XGT Brushless 70 lb. 1‑1/8" Hex AVT Breaker Hammer Kit, AWS Capable (8.0Ah) - GMH04PLX
The 80V max (40V max X2) XGT® 70 lb. 1-1/8" Hex AVT® Breaker Hammer Kit, AWS® Capable (8.0Ah) (model number GMH04PLX) delivers 53.7 ft. lbs./72.8 Joules of Impact Energy (0-870 BPM). The GMH04 delivers up to 70% faster breaking than corded* and is the most powerful cordless breaker in its class.
Makita once again breaks new ground with the new cordless XGT® 70 lb. Breaker Hammer giving users a powerful and portable tool that can demolish up to an 8ft. x 6ft. x 4in. thick 5000 psi concrete slab using two fully charged 40V max XGT® 8.0Ah Batteries (BL4080F).
Features:
- OUTPOWER: Most Powerful Cordless Breaker in its Class
- OUTSMART: Delivers up to 70% faster breaking than corded*
- OUTLAST: Demolishes up to an 8ft. x 6ft. x 4in. thick 5000 psi concrete slab on a single charge
- Anti-Vibration Technology (AVT®) is an internal counterbalance system along with vibration-absorbing handles that work together to reduce up to 30% less overall vibration*
- Auto-start Wireless System (AWS®) utilizes Bluetooth® technology for wireless power-on/off communication between tool and dust extractor (AWS® Transmitter sold separately)
- Dust extraction capability with optional Makita Dust Attachment Kit
- Soft start suppresses start-up reaction for improved accuracy
- "Soft no-load" function automatically reduces the speed of the motor when idling to help increase tool life and performance
- Built-in Dual L.E.D. lights with an independent on/off switch illuminates the work area
- The digital communication within XGT® optimizes performance to provide up to 2X longer sustained power under heavy-load applications
What Our Experts Think
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Makita GMH04PLX 80V max XGT Brushless 70 lb. 1‑1/8" Hex AVT Breaker Hammer Kit delivers serious cordless demolition power for concrete, masonry, and heavy chiseling.
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80V max (40V max X2) XGT brushless motor provides strong torque and consistent performance on demanding jobs.
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1‑1/8" hex capacity handles large chisels and breaking tasks with ease.
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AVT (Anti‑Vibration Technology) reduces vibration for comfort and control during prolonged use.
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AWS capable for automatic start/stop when paired with supported tools and extractors.
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8.0Ah batteries included deliver extended runtime for longer sessions without frequent swaps.
Product Q&A
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What battery system does it use?
Makita 80V max (40V max X2) XGT Lithium‑Ion (two 8.0Ah batteries included).
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Is it suitable for heavy demolition?
Yes — high impact energy and large hex capacity make it ideal for breaking concrete and tough surfaces.
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Does it reduce vibration?
Yes — AVT minimizes vibration for improved comfort.
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Can it sync with dust extraction?
Yes — AWS capability allows automatic on/off with compatible extractors.
Maintenance Tips
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Wipe dust and debris from the tool body and vents after each use.
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Inspect chisels and replace if worn or damaged.
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Check handles and fasteners before operation to ensure tightness.
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Store the breaker and batteries in a cool, dry place when not in use.
Damage 
Loss 
Theft 
