GMH04PL4X
80V max (40V max X2) XGT® Brushless 70 lb. 1‑1/8" Hex AVT® Breaker Hammer Kit, AWS® Capable with 4 Batteries (8.0Ah)
80V max (40V max X2) XGT® Brushless 70 lb. 
1-1/8" Hex AVT® Breaker Hammer Kit with 4 Batteries
GMH04PL4X

80V max (40V max X2) XGT® Brushless 70 lb. 1‑1/8" Hex AVT® Breaker Hammer Kit, AWS® Capable with 4 Batteries (8.0Ah)

  • POWER : Most Powerful Cordless Breaker in its Class
  • PERFORMANCE : Delivers up to 70% faster breaking than corded
  • RUN TIME : Demolishes up to an 8ft. x 6ft. x 4in. thick 5000 psi concrete slab on a single charge
  • COMFORT : AVT® and vibration-absorbing handles work together to reduce up to 30% less overall vibration
  • INCLUDES : (4) 40 max XGT® 8.0 Ah batteries, rapid charger, cart, bits

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).

The GMH04 features Anti-Vibration Technology (AVT®), which is an internal counterbalance system along with vibration-absorbing handles that work together to reduce up to 30% less overall vibration*. It also features Auto-start Wireless System (AWS®), which utilizes Bluetooth® technology for wireless power-on/off communication between tool and dust extractor (AWS® Transmitter sold separately). The 70 lb. Breaker Hammer also features Extreme Protection Technology (XPT™), engineered for improved dust and water resistance for operation in harsh conditions.

Convenience features include the "Soft no-load" function which automatically reduces the speed of the motor when idling to help increase tool life and performance. There are built-in Dual L.E.D. lights with an independent on/off switch for illumination of the work area. For dust extraction, Makita offers an optional Dust Attachment Kit.

XGT® is a system of equipment, tools, batteries, and chargers utilizing 40 max lithium-ion batteries. XGT® is engineered to deliver high power to take on high-demand applications, allowing users to completely transition to a cordless job site. XGT® is equipped with advanced brushless motor engineering, intelligent digital communication, and superior durability features to outpower, outsmart and outlast the rest.

*Compared to HM1812

  • 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
  • The digital communication within XGT® optimizes performance to provide up to 2X longer sustained power under heavy-load applications
  • The digital communication within XGT® actively monitors and protects against overload, over-discharge and overheating
  • XGT® Tools and Batteries are designed with a multi-layer contact interface for more constant power delivery to take on high-current demands
  • XGT® Batteries feature rigid rails with impact-resistant construction to secure the battery to the tool during high-demand applications
  • The XGT® Rapid Charger with dual-fan design circulates air through the battery to cool the battery and circuit board quickly for faster charging
  • The XGT® Rapid Charger’s digital display indicates battery charge level (-80%, +80%, 100%)
  • The XGT® Rapid Charger’s built-in chip thoroughly communicates during the charging process to control current, voltage, and temperature for more efficient charging
  • 40V max XGT® Lithium-Ion 8.0Ah Battery (BL4080F) reaches a full charge in 76 minutes or less
  • Compatible with Makita® 40V max XGT® Lithium-Ion Batteries
  • Only use genuine Makita batteries and chargers
  • 3-year limited warranty on tool, battery and charger
  • *Compared to HM1812
XGT (White in Black Box) AVT - Anti Vibration Technology Logo (Black on White) XPT- Extreme Protection Technology Logo (Black on White)
  • XGT®
  • XGT® is a new 40V | 80V max system of cordless equipment and tools. XGT outpowers, outsmarts, and outlasts the rest. Through Makita’s innovative engineering, the technology within XGT will lead to creating the equipment and tools of the future [Learn More]

  • AWS®
  • Makita takes another step toward a truly cordless job site with Auto-Start Wireless System. AWS® uses Bluetooth® technology for wireless power-on and power-off communication between the equipped tool and dust extractor. AWS® is intelligent communication that eliminates cords and excessive noise since the dust extractor runs only when trigger-activated by an AWS® tool. When the trigger is released, the dust extractor powers-down. The Makita AWS® dust extractor (XCV08Z) is powered by two 18V LXT® batteries for maximum performance, and users benefit with an expanding AWS® system that includes cordless tools for concrete, metal and woodworking.

  • XPT™ Extreme Protection Technology
  • When the job takes your Makita tool into harsh conditions, Makita Extreme Protection Technology (XPT™) provides added protection. XPT™ is a series of integrated seals engineered to channel away dust and water for increased durability. Wherever the job takes you, Makita tools equipped with XPT™ are engineered for increased durability and longer tool life.

  • AVT® Anti-Vibration Technology
  • Anti-Vibration Technology (AVT®) is a counterbalance system inside the tool that significantly reduces vibration. The AVT® counterbalance design is based on seismic engineering, which developed this damping science to absorb shocks and protect buildings from earthquakes. AVT® uses a mechanical damper, effectively a counterbalance weight inside the tool, that provides an equal and opposite force that puts a mass directly opposite the point where the striker bolt delivers the impact. As vibration is eliminated, power is efficiently increased which allows more of the generated energy in the motor to be delivered to the tool bit. Makita also has an AVT® counterbalance system in select recipro saws. For users, AVT® means significantly less vibration with no compromise in power and performance. [Learn More]

  • Net Weight : 70.8 lbs.
  • Blows Per Minute (variable speed) : 0 - 870 BPM
  • Impact Energy (ft.lbs.) : 53.7
  • Impact Energy (Joules) : 72.8 J
  • Overall Length : 34-3/4"
  • Vibration Control  : Yes
  • Bit Type : 1-1/8" Hex
  • Battery : 40V max XGT® Lithium-Ion
  • Noise Level : 108 dB
  • Automatic-start Wireless System (AWS®) : Capable (transmitter sold separately)
  • Power Type : Cordless
  • Breaker/Demo class : 25
  • Type (Breakers & Demolition Hammers) : Demolition Hammer
  • Dimensions (LxWxH) : 34-3/4" x 8-15/16" x 21-1/4"
  • Packaged Depth (in) : 24.875"
  • Packaged Height (in) : 21.625"
  • Packaged Width (in) : 51.25"
  • Shipping Weight : 166 lbs.
  • UPC Code : 197050-004154
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