The Makita GA004GZ delivers corded-level performance in a fully cordless form factor, powered by the 40 V max XGT platform. With a compact, ergonomic design and a brushless motor running at 8,500 rpm, it’s engineered for tough professional cutting and grinding tasks. Built-in safety features like Active Feedback Technology (AFT), electric brake, anti-restart, and soft-start, combined with tool‑less wheel guard adjustment and XPT dust/water protection, make it ideal for harsh jobsite environments. The slide-switch interface, advanced control electronics (AFT, anti-restart, soft-start), robust construction with XPT protection, and fast tool-free guard adjustment make it ideal for demanding industrial and construction applications.

• Brushless motor: Efficient, cooler operation and extended tool life

• Slide switch with lock‑on and anti‑restart (NVR): Prevents accidental starts during battery changes

• AFT (Active Feedback Technology): Automatically shuts off the tool if wheel rotation stops suddenly (e.g., kick-back)

• Electronic brake: Cuts wheel spin within ~2 seconds after trigger release

• Soft‑start: Smooth RPM ramp-up for easier handling and longer gear life

• Tool‑less guard adjustment: Reposition wheel guard without tools for convenience and speed

• XPT (eXtreme Protection Technology): Enhanced dust/moisture resistance for durability on tough job sites

Noise & Vibration

• 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): 5.5 m/s²

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

Dimensions & Weight

• Product Weight (without battery): 1.8 kg

• Tool Weight with Battery (EPTA): 2.9 – 3.5 kg

• Product Dimensions (L × W × H): 398 × 130 × 156 mm

Technical Specifications

• No Load Speed: 8,500 min⁻¹

• Nominal Battery Voltage: 40 V

• Voltage Platform: XGT

• Grinding Disc Diameter: 115 mm

• Bore Size (Arbor Diameter): 22.23 mm

• Spindle Thread: M14

Features

• Brushless Motor: Yes

• Electronic Brake: Yes

• Anti-Restart Function (NVR Switch): Yes

• Battery Protection: Yes

• Grip: Yes

• Side handle

• Lock nut wrench
  (No battery or charger included)