The Bosch HS1470P 3/4 in. X 10 in. Viper Flat chisel SDS-Plus is ideal for demolition work, breakthroughs, adjustment work, restoring joints and clearing reinforcements. It provides a unique cutting head with power ribs and Viper teeth, which are extra wedges for faster breakout. They create not only lateral cracks but also additional vertical cracks, for a no-jam design. This self-sharpening tool provides longer life and No additional sharpening hassle.