Makita GA040GD201 115mm (4.1/2") 40v 40Vmax XGT X-Lock Angle Grinder with 2x 2.5Ah Batteries and Charger

Slide switch with lock-on function
Tool-less wheel cover
X-LOCK mechanism: install/remove X-LOCK wheels with just a single action without tool
Electric brake
Variable speed control
Soft start
Anti-restart function.
Active Feedback Sensing Technology (AFT): Shuts down the tool if the rotation speed suddenly slows down
Auto-Start Wireless System (AWS) - connects to compatible dust extractors with Bluetooth. The dust extractor automatically runs while the switch is on.