The Bosch HS1916 is a SDS Max, 1-1/2 inch x 12 inch, Scale Chisel. The latest generation of SDS-max chisels and points feature the newest innovation in demolition steel reflection technology. Boschs R-Tec reflection point is featured on HS1903 and HS1904. When energy is dispersed with each beat of the hammer, the new R-Tec point reflects the hammers energy back into the work material, increasing the rate of removal by 15%. The result is faster demolition which increases overall jobsite productivity and profitability.