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).
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
WARNING: Proposition 65 Warning for California Residents View Details
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
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
Compared to HM1812
Includes
(1) 80V Max (40V Max X2) XGT Brushless 70 lb. 1-1/8" Hex AVT Breaker Hammer, AWS (GMH04Z)
(2) 40V Max XGT 8.0Ah Battery (BL4080F)
(1) 40V Max XGT Dual Port Rapid Optimum Charger (DC40RB)
(1) 1" x 20-1/2" Flat Chisel, 1-1/8" Hex (D-21369)
(1) 16" Self Sharpening Bull Point, 1-1/8" Hex (B-45559)
(1) Premium Hammer Cart (T-03224)
(1) Hex Wrench (783203-8)
Video
Battery Type
Lithium-Ion
Cordless System
40V MAX
Voltage
40 V
Warranty
3-year limited warranty on tool, battery and charger