Hitachi Rotary Hammer: * Powerful design and class * Top drilling speed * 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 count the bit * Push button forward reverse changeover switch and variable speed control switch * Non slip double layer molded handle * 36 individual tool positions with variable locking mechanism in relation to the work in the hammering only mode * Idle hammering prevention mechanism * Slip clutch mechanism * Auto stop type carbon brush * 3 mode action includes rotary hammer, rotation only, and hammering only mode * 1/8" to 15/16" concrete capacity, 1/2" steel capacity and 1 1/4" wood capacity * 720 watts * 120V * 6.3 amps * 0 to 1,150 forward no load speed per minute * 0 to 640 reverse no load speed per minute * 0 to 4,600 full load impact rate per minute * SDS-plus bit shank