Length: 12" Width: 2" Shank Style: Spline For use in spline-drive demolition and rotary hammer applications Bosch brings constant innovation to concrete and masonry drilling with increased effeciency and higher durability All Bosch chisels are manufactured with a proprietary heat-treat process Scaling chisel Round hex/spline hammer steel One-piece design For use in applications requiring removal of large quanities of material