Makita 40V Max XGT 1-1/8" AVT Rotary Hammer (Bare Tool) - GRH02Z
The Makita 40 Volt Max XGT 1-1/8 Inch brushless rotary hammer tool only with interchangeable chuck, is a perfect cordless concrete solution for heavy-load applications. It is precisely designed to deliver the more power, speed as well as run-time for corded applications, without the cord. Rotary hammer has Makita built brushless motor, which delivers a full 2.8 ft-lb of impact energy with 0 to 980 RPM and 0 to 5000 BPM. Tool featuring quick-change chuck, assists to switch from SDS-PLUS bits to 1/2 Inch keyless chuck in order to make use of straight shank bits. The XGT technology renders up to 135 of 3/8 Inch holes per charge when using a 40 Volt max XGT 4.0 Amp-hour battery. Constant speed control applies additional power automatically under load for superior performance. Rotary hammer has Extreme Protection Technology (XPT) to increase dust and water resistance, thereby assures increased durability in harsh job site conditions.
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: Torque limiting clutch engineered to prevent gear damage by automatically disengaging gears during a bind-up situation
- 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 AWS 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
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Cordless Power That Keeps Up — Makita’s brushless motor combined with the 40V Max XGT platform delivers strong power and runtime comparable to corded pro units for demanding concrete drilling.
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Versatile Chuck System — Interchangeable chuck lets you switch between SDS‑PLUS bits and a ½″ keyless option for straight‑shank bits, expanding utility on the job.
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Smart Load Response & Protection — Active Feedback‑Sensing Technology (AFT) shuts the motor off if the bit binds, reducing kickback and extending tool life.
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Comfort‑Focused Vibration Control — AVT (Anti‑Vibration Technology) with counterbalance and cushioned handles greatly reduces vibration for all‑day use.
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Premium Job‑Site Features — Built‑in LED work light, variable speed dial, electric brake, and retractable tool hook improve control, visibility, and productivity.
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Dust Management & AWS Ready — Capable of wireless Auto‑Start Wireless System (AWS) communication with compatible dust extractors; supports OSHA Table‑1 compliant dust extraction attachments (sold separately).
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Pro Tip: Pair with high‑capacity XGT batteries for maximum drilling cycles and include a dust extraction setup on indoor/occupied projects for cleaner, safer work.
Q&A
Q: What is the Makita GRH02Z?
A: The Makita 40V Max XGT Brushless Cordless 1‑1/8″ AVT® Rotary Hammer (GRH02Z) is a professional‑grade bare tool designed for heavy drilling and hammering into concrete and masonry. Battery and charger are sold separately.
Q: What applications is this rotary hammer suited for?
A: It’s ideal for drilling holes in concrete, block, and other hard materials commonly encountered on construction and renovation jobsites.
Q: What key capabilities does this tool offer?
A: It features a brushless motor for efficient power delivery, interchangeable SDS‑PLUS and ½″ keyless chucks for versatility, and vibration‑reducing AVT technology for user comfort.
Q: What makes the GRH02Z stand out?
A: It delivers high cordless performance close to corded tools, supports AWS wireless dust extractor connection (adapter sold separately), and includes essentials like a side handle and grease.
Maintenance Tips
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Clean after each use – remove concrete dust and debris from vents, bit area, and handles with a dry cloth or compressed air to prevent clogs and overheating.
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Inspect and clean SDS‑PLUS bits – check bits for wear or damage and wipe shanks clean; apply a light coat of grease before inserting to reduce friction.
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Protect battery contacts – keep the tool’s XGT battery terminals clean and dry to ensure strong electrical connection and prevent corrosion.
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Check attachments & fasteners – tighten side handles, chucks, and any accessories before each use to avoid looseness from vibration.
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Keep cooling vents clear – clear any buildup around vents to maintain airflow and prevent the brushless motor from overheating.
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Use proper drill modes – use the appropriate setting (rotation only, hammer with rotation, or hammer only) to match the task and reduce unnecessary strain.
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Store in a dry, cool place – avoid moisture and extreme temperatures to protect internal electronics and metal components.
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Service periodically – inspect for wear at intervals and replace worn parts (bits, handles, seals) to maintain optimal performance.
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