Bosch 1 In. x 12 In. Flat Chisel Tool Round Hex/Spline Hammer Steel is designed to handle a variety of tough tasks including edging, digging in gravel roads, compacting, grooving, cutting, stripping, and roughing. Bosch continually innovates in the field of concrete and masonry drilling, ing tools that deliver increased efficiency and enhanced durability. This chisel is crafted using a proprietary heat-treat process to ensure long-lasting performance and reliability in demanding applications. Model Number: