Drilling capacity 26mm voltage/frequency: 230v/50hz input power: 800w no load speed: 1250rpm. Rotary hammer drill is used to drill through hard concrete surfaces and hole upto 26mm in diameter. These are heavy duty machine which find a wide range of applications in home and workshop where heavy duty drilling is involved. Its ergonomic design and easy-to-use features make it suitable for diy applications as well as workshop jobs. This versatile tool can be used in drill mode and hammer drill mode, making it suitable for both professionals as well diy'ers. The rotary drill mode is suitable for simple drilling and driving applications while the hammer drill mode allows for heavy drilling in masonry.