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
-
Powerful Cordless Performance: The Makita GMH04PLX delivers 80V max power (using dual 40V max XGT® batteries) with 70 lbs. of impact force, making it ideal for heavy concrete demolition and tough jobs.
-
1‑1/8" Hex Shank: Accepts standard SDS-Max bits, providing flexibility for various applications, from concrete breaking to rock excavation.
-
Advanced AVT Vibration Control: Makita's Anti-Vibration Technology minimizes vibration, enhancing comfort and reducing operator fatigue during extended use.
-
AWS Capable: The Auto-Start Wireless System ensures automatic dust extractor activation when paired with compatible tools, promoting a cleaner workspace.
-
Brushless Motor: Delivers high efficiency, longer tool life, and reduced maintenance, optimizing performance even under tough conditions.
-
Heavy-Duty Construction: Built to endure demanding environments with durability and reliable performance.
Q&A
Q: What is the Makita GMH04PLX Breaker Hammer?
A: The Makita GMH04PLX is a powerful 80V Max (40V Max X2) XGT® brushless cordless breaker hammer, designed for heavy-duty demolition with 70 lb. impact force and 1‑1/8" hex shank compatibility.
Q: How does AVT improve user experience?
A: The Anti-Vibration Technology (AVT®) minimizes vibration, offering enhanced comfort and reduced fatigue during extended use, especially in tough demolition tasks.
Q: Is this breaker hammer AWS compatible?
A: Yes, the GMH04PLX is AWS (Auto-Start Wireless System) capable, enabling wireless tool synchronization with compatible dust extractors for cleaner job sites.
Q: What’s included in the kit?
A: The kit comes with the breaker hammer, two 40V Max XGT® 4.0Ah batteries, a dual-port rapid charger, and a durable carrying case.
Q: Who is the Makita GMH04PLX ideal for?
A: This tool is perfect for professional contractors and demolition specialists who require a high-performance, cordless solution for breaking concrete, masonry, and other hard materials.
Q: What power does the battery system provide?
A: The dual 40V Max XGT batteries deliver unmatched cordless power and runtime, offering performance comparable to corded models for demanding jobs.
Maintenance Tips
-
Clean After Each Use: Regularly remove dust and debris from vents and the motor area to prevent overheating.
-
Inspect Bits & Chisels: Check the 1‑1/8" hex chisels for wear or damage. Replace them when necessary to maintain cutting efficiency.
-
Lubricate Moving Parts: Apply grease to moving parts to ensure smooth operation and reduce wear.
-
Check Battery Contacts: Clean battery terminals regularly and ensure batteries are fully charged for optimal performance.
