7/8" Compact SDS Rotary Hammer Kit, 6.9A Motor Provides High Performance & Overload Protection: 0-1,550 RPM, 0-4,550 BPM, Variable Speed Trigger Allows User To Instantly Control Speed From 0 To Dialed Setting, Lightweight Design For Easy Use & Handling, Mode Selector Allows For Usage In Rotary Hammer, Rotary Only & Chiseling Applications, Reversing Feature Helps Release Tool From Bind Up Situations & Assists With Removal Of Fasteners, Integral Clutch Reduces Sudden, High Torque Reactions If Bit Jams, 360 Degree Side Handle Adjusts Easily For Preference Or Use In Tight Spaces, D-Handle Design Offers Preferred Balance For Downward Drilling.