Hilti TE-CP SPM 6/18 Wide-Flat Polygon Chisel with SDS Plus Shank - 282302 - 7-1/16" Innovative design with self-sharpening tip profile Constant high performance over the entire service life of the chisel No resharpening, reforging, or rehardening necessary Reduced sticking in concrete or masonry For chipping, smoothing, and removing tile