New and powerful design and class-top drilling speed

   thanks to the efficient trasmission of the hammering

   energy
800W Hitachi powerful motor 
Long service life and high durability thanks to 
   Internal pressure adjustment mechanism
Idle hammering prevention mechanism
Equipped with a sealed type ball bearing for improved
   resistance to grease leakage
One-push tool retainer eliminates the need for sliding 
   the grip to mount the bit
Non-slip double-layer molded handle and gear cover
Compact body: Entire length 351mm(13-13/16")
Push-button type forward-reverse changeover switch
36 individual tool-positions; variable locking mechanism
   in relation to the work in the hammering only mode
slip-clutch mechanism
Auto-stop carbon brush
3-mode action: rotary hammer, rotation only, and

   hammering only mode