The GA022GZ01 is a cordless 115mm Angle Grinder, powered by 40V Max XGT Li-ion battery (not included), to supply energy to the powerful 40V brushless motor, with soft start & variable speed controlled by dial, to deliver up to 8, 500 rpm, similar to a 1, 000 watt mains machine, for faster cutting & grinding. The GA022GZ01 is equipped with on/off slide switch with lock on function, tool-less wheel cover, adjustable to any desired position, electric brake for increased operator safety & anti-restart function to prevent motor start up when the battery is inserted with switch locked on. The GA022GZ01 is capable of continuously performing heavy duty cutting & grinding. The GA022GZ01 features Auto-Start Wireless System (AWS) to connect to a compatible dust extractor with Bluetooth (Chip 198900-7 required, sold separately); the dust extractor automatically runs whilst the machine switch is on & Active Feedback Sensing Technology (AFT) to shut down the tool to protect the user if the rotation speed suddenly slows down.