Makita 40V max XGT Brushless Cordless 1‑3/16" SDS‑PLUS AVT Rotary Hammer Kit, with Interchangeable Chuck, AWS Capable (4.0Ah) - GRH09M1

Makita 40V max XGT Brushless Cordless 1‑3/16" SDS‑PLUS AVT Rotary Hammer Kit, with Interchangeable Chuck, AWS Capable (4.0Ah) - GRH09M1 

• POWER : Makita brushless motor and 40V max XGT battery deliver the power needed for heavy applications
• VERSATILITY : Quick change chuck allows for interchangeability from SDS-PLUS to 1/2" keyless chuck
• COMFORT : AVT is a counterbalance system along with vibration-absorbing handles that work to reduce vibration
• DUST MANAGEMENT : Dust extraction capability with OSHA compliant on-board HEPA Dust Extractor (sold separately)
• INCLUDES : (1) 40V max XGT Lithium-Ion 4.0Ah battery, charger, side handle, grease, towel, tool case

Features

• OUTPOWER: Makita-built brushless motor along with 40V max XGT battery combine to deliver the power performance required for heavy-load application
• OUTSMART: Constant speed control automatically applies additional power under load for optimum performance
• OUTLAST: Overload protection is designed to protect the motor from burnout in abnormally high torque situations
• XGT technology delivers up to 135 of 3/8" holes per charge using full charged 40V XGT 4.0Ah battery*
• Quick change chuck allows for interchangeability from SDS-PLUS to 1/2" keyless chuck for utilization of straight shank bits
• Active Feedback-Sensing Technology (AFT) electronically turns off the motor if rotation of bit is suddenly forced to stop
• Anti-Vibration Technology (AVT) is an internal counterbalance system along with vibration-absorbing handles that work together to reduce vibration
• Dust extraction capability with OSHA Table 1 compliant on-board HEPA Dust Extractor or stand-alone AW Extractor options
• Auto-Start Wireless System (AWS) which utilizes Bluetooth technology for wireless power-on/off communication between tool and dust extractor (AWS Transmitter sold separately)
• Electric brake allows the tool to be repositioned faster for maximum productivity

What our Experts Think

• Professional‑Grade Cordless Power – Brushless motor paired with the 40V max XGT battery delivers heavy‑load drilling performance typical of corded tools, ideal for concrete and masonry tasks.

• Versatile Quick‑Change Chuck – Interchangeable between SDS‑PLUS and 1/2″ keyless chuck enables use of both SDS bits and standard straight‑shank accessories.

• Reduced Vibration Comfort – AVT internal counterbalance plus vibration‑absorbing handles significantly cut tool vibration, lowering fatigue during extended use.

• Smart Dust Control Ready – AWS compatible with dust extractors for automatic start/stop; OSHA Table 1 compliant with onboard HEPA extraction when paired (extractor sold separately).

• Job‑Site Durability & Safety – Extreme Protection Technology (XPT) resists dust and water; Active Feedback‑Sensing Technology (AFT) and torque limiting clutch protect motor and drive components. 

• Control & Convenience – Variable speed dial and trigger let you match speed to application, with an electric brake, built‑in LED work light, ergonomic grip, and retractable hook for storage.

Q&A

Q: What is the Makita GRH09M1?
A: A 40V max XGT brushless cordless 1‑3/16" SDS‑PLUS rotary hammer kit with AVT vibration reduction, interchangeable chuck, and AWS capability.

Q: What’s included in the kit?
A: Rotary hammer, 40V max XGT 4.0Ah battery, rapid charger, quick‑change 1/2" keyless chuck, side handle, grease, towel, and tool bag.

Q: How versatile is this rotary hammer?
A: Quick‑change chuck allows switching between SDS‑PLUS and 1/2" straight shank bits for drilling and light chiseling.

Q: What performance features does it have?
A: Brushless motor with constant speed control, overload stop, electric brake, and variable speed for optimized power and durability.

Q: Does it reduce vibration?
A: Yes — AVT and ergonomic handles minimize fatigue during extended jobs.

Q: Can it connect with dust extractors?
A: It’s AWS capable, allowing wireless on/off control with compatible extractors (transmitter sold separately).

Q: What are the key specs?
A: Drills up to 1‑3/16" concrete, variable 0–4,500 BPM, 0–840 RPM, SDS‑PLUS bits, and ~10.1 lbs with battery.

Maintenance Tips

• Clean chisel/bit & chuck after each use to prevent buildup.

• Grease gearbox per manual intervals to extend life.

• Inspect SDS-PLUS bit and chuck for wear; replace when worn.

• Clear vents & housing to avoid dust clogging and overheating.

• Check fasteners regularly to ensure nothing loosens.

• Charge/maintain batteries correctly; clean terminals.

• Store dry & cool when not in use to protect electronics.