1-1/8" SDS Plus Rotary Hammer Kit1 1 8" SDS Plus Rotary Hammer Kit 3. 0 out of 5 stars, average rating value. Read 2 Reviews. Same page link. 3. 0 (2) Write a review Get up to 85% Faster Drilling and 85% Harding Hitting while reducing Vibration to only 10. 6 m s2. With a powerful 8 amp motor, this rotary hammer delivers 0 1,500 RPM, 0 5,500 BPM and 3. 6 ft lbs of impact energy. This tool also has an all metal gear case and mechanical clutch to provide maximum durability. At only 12 1