New and powerful design and class-top drilling speed

   thanks to the efficient trasmission of the hammering

   energy
800W(120V:7.0A power input) Hitachi powerful motor 
Long service life and high durability thanks to 
   Internal pressure adjustment mechanism
Idle hammering prevention mechanism
Sealed and dustproof construction
One-push tool retainer eliminates the need for sliding 
   the grip to mount the bit
Non-slip double-layer molded handle and gear cover
Variable speed control switch
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