Use of Non-personally Identifiable Information Provided Voluntarily by the User. The Bosch RH328VC rotary hammer will control vibration without effecting the power. Soft start ensures precise hole placement without the delay of constant restart because of bit movement. SDS-Plus Rotary Hammer combines an 8 Amp motor that produces 2.6 ft. lbs. Bell Gardens, CA. It’s similar to a hammer drill, but instead of a special clutch, it uses a piston mechanism. Cookies are text files that can be rejected or deleted by you at any time.