The Bosch HS1911 1-inch x 12-inch Flat Chisel SDS-Max Rotary Hammer Bit is durable and ready for extreme performance. The Bosch HS1911 uses an SDS-Max shank to ensure tight grip for the toughest jobs. Features: * Use for breaking away concrete in tight areas where hammers and chisels will not fit * Flat chisel head is great for breaking clay and slab concrete * Will fit hammers using TE-Y and TE-FY shanks What"s In The Box: * Bosch HS1911 1-inch x 12-inch Flat Chisel SDS-Max Rotary Hammer Bit