The Makita GA028GZ is a compact and powerful 115 mm (4-1/2”) cordless angle grinder from Makita’s advanced 40V max XGT® platform, engineered for professional-grade grinding and cutting tasks. Powered by a high-efficiency brushless motor, it delivers performance equivalent to a 1,000W corded grinder—while giving users the mobility and convenience of cordless operation.

This tool features multiple intelligent safety technologies including Active Feedback sensing Technology (AFT) that automatically shuts down the motor if wheel rotation is suddenly forced to stop, electronic brake, anti-restart function, and soft start for user safety and control. With tool-less wheel cover adjustment, X-lock mechanism, and AWS (Auto-start Wireless System) readiness, it’s optimized for both versatility and compatibility with dust extraction systems.

Whether for metalwork, construction, or industrial applications, the GA028GZ is built to meet the needs of professionals requiring reliability, power, and smart technology on tough job sites.

• Brushless motor (BL) for cooler operation, enhanced efficiency, and long tool life.

• Paddle‑switch with lock‑on plus anti-restart (NVR) to prevent accidental startup.

• Active Feedback Technology (AFT) automatically stops the motor on sudden speed drops or stalled wheels.

• Electric brake stops the wheel within ~2 seconds once trigger released.

• Soft‑start feature smooths initial acceleration and improves gear longevity.

• Tool‑less adjustable wheel cover for quick guard positioning without tools.

• AWS Ready for wireless Auto‑Start when connected to compatible Makita dust extractors via Bluetooth.

• Extreme Protection Technology (XPT) for enhanced resistance to dust and moisture.

• Slim soft‑grip handle for reduced vibration and improved comfort.

• Maximum Output Power: 1100 W

• No Load Speed: 3000 – 8500 min⁻¹

• Product Dimensions (L x W x H): 337 x 210 x 290 mm

• Tool Weight with Battery (EPTA): 3.0 – 3.6 kg

• Nominal Battery Voltage: 40 V

• Battery Chemistry: Li-ion

• Voltage Platform: XGT

• Grinding Disc Diameter: 115 mm

• Bore Size (Arbor Diameter): 22.23 mm

• Spindle Thread: M14

• Grip: Yes

• Brushless Motor: Yes

• Battery Protection: Yes

• Grinding Wheel Included: Yes

• Lock Nut Wrench Included: Yes

• Anti-Restart Function (NVR Switch): Yes

• Electronic Brake: Yes

• AWS (Auto-Start Wireless System) Ready: Yes

Noise & Vibration Levels

• Sound Power Level (LWA): 92 dB(A)

• Sound Pressure Level (LPA): 81 dB(A)

• Noise Uncertainty (K Factor): 3 dB(A)

• Vibration Level (3 Axes): 5.0 m/s²

• Vibration Uncertainty (K Factor): 1.5 m/s²

• Grinding Wheel

• Lock Nut Wrench