Makita 80V MAX -(40V max X2) XGT Brushless 70 lb. 1‑1/8" Hex AVT Breaker Hammer Kit - GMH04PL4X
The 80V max (40V max X2) XGT 70 lb. 1-1/8" Hex AVT Breaker Hammer Kit, AWS Capable with 4 Batteries (8.0Ah) (model number GMH04PL4X) 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)
- Extreme Protection Technology (XPT) is engineered for improved dust and water resistance for operation in harsh conditions
- 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
What our Experts Think
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Industry‑Level Power: 80V MAX (40V MAX X2) XGT brushless motor delivers exceptional impact force for heavy‑duty breaking and demolition.
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Hex Drive Durability: 1‑1/8″ hex system ensures secure bit engagement and maximum force transfer on tough concrete and masonry.
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Reduced Fatigue: AVT (Anti‑Vibration Technology) minimizes vibration, increasing comfort and control during prolonged use.
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Pro‑Ready Kit: Complete kit format gives professionals everything needed to tackle demanding jobs straight out of the box.
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Expert Recommendation: Ideal for contractors and serious pros who need reliable, high‑performance demolition power with advanced vibration control.
Q&A
Q: What is this breaker hammer designed for?
A: Heavy-duty demolition in concrete, masonry, and stone for professional construction and industrial applications.
Q: What powers the tool?
A: 80V Max (40V Max X2) XGT brushless lithium-ion batteries (sold separately).
Q: What bit type does it accept?
A: 1‑1/8" hex shank bits for maximum impact and durability.
Q: How heavy is the breaker hammer?
A: 70 lb, engineered for maximum force and efficient demolition.
Q: What advanced features are included?
A: AVT (Anti-Vibration Technology) reduces operator fatigue and improves control.
Q: Is it cordless?
A: Yes, fully cordless for unmatched mobility on job sites.
Q: What’s included in the kit?
A: Breaker hammer, carrying case, and necessary accessories.
Q: What makes it stand out?
A: High-impact performance, brushless efficiency, AVT comfort, and cordless XGT power for professional demolition tasks.
Maintenance Tips
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Keep tool clean and free of dust and debris
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Inspect hex chuck, bits, and hammer mechanism for wear
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Fully charge 40V X2 (80V MAX) XGT batteries; store in a cool, dry place
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Lubricate moving parts and hammer mechanism periodically
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Check and tighten all fasteners regularly
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Avoid overloading; use proper mode and speed for material
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Store in a dry, ventilated area when not in use
Damage 
Loss 
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