I removed 2600 feet of Saltillo tile and managed to do 2000 feet with one of these chisels. I had a grinder handy and reworked the chisel once a day. (If you do this, be careful not to heat the metal. Work slowly and don't stress the steel out of its hardened state. If necessary, dip it in water between sharpenings to keep it cool.) My BOSCH 11316 SDS MAX Rotary Processor Hammer went through tiles like an ice breaker with this chisel blade on it. I bought three of these just to have a spare and am very glad I did. Cool for tiles.