General description For heavy-duty chiselling, channelling, and demolition tasks in concrete, stone (medium hardness), floor and wall tiles, general masonry, and mortar. The DeWALT DT6803-QZ SDS Plus Flat Chisel is designed for durability and efficiency. Technical specifications Type: SDS Plus Flat Chisel Dimensions: 250 mm x 40 mm Material: Specially toughened steel Other information Micro-processor controlled heat treatment ensures consistent toughness and long life of the chisel.