Hitachi Cordless 4½" Angle Grinder Model Number: G18DSL/JJ High torque, cordless angle grinder with high capacity 5.0Ah Li-ion batteries. Features a low battery indicator, side-mounted switch and low gear cover height for easy access to confined areas. Multiplex protection circuit for maximum battery life. Compare View Product Hitachi 4½" Angle Grinder 18v - Bare Unit Model Number: G18DSL/L4 In-use data available High torque grinder with low gear cover height for use in confined areas. Lightweight and compact. Supplied with grinding disc. Compare View Product Hitachi 18v BL Cordless 4½" Angle Grinder - Bare Unit Model Number: G18DBAL/W4 18V angle grinder with an advanced high efficiency brushless motor. Over-current protection prevents burnout by monitoring a current in the battery and motor. Lightweight and compact body with a slim grip and small gear cover for easy handling and efficient operation. Auto mode function for reducing noise and vibration and easy to use paddle switch. With soft-start, kick back protection and anti-restart protection. Compare View Product