● High-power professional motor, 5-tooth motor, 1-to-2 gear structure, higher hammer-drill ratio and drilling rate.

● Internal vortex air duct design, directional exhaust and dust blowing, protect the health of workers.

● 3rd generation roller safety clutch. Automatically stop when hitting the steel bar, and don't let go of the drill when it gets stuck.

● Special SDS chuck, quick installation, firm clamping, and prevent the drill from falling during operation.

● Carbon brush wear warning light design, automatic power-off protection when the carbon brush is worn.

● Large trigger four-finger switch, comfortable operation.