This is a cordless impact wrench. The model shown has "BL motor" branding, which is associated with brushless motors used in tools from various manufacturers, including Makita and other compatible brands.
This type of tool is designed for tightening and loosening bolts and nuts with high torque.
It is powered by a rechargeable battery, making it portable and convenient for use in various locations.
The "BL motor" indicates it uses a brushless motor, which is known for its efficiency, durability, and longer run time compared to brushed motors.