Bosch Hollow Chisel SDS-plus, 250 mm total length, 22 mm cutting width, curved shape. The hollow chisel with SDS plus fitting is a striking tool for light drills and hammer drills. It enables chiseling through concrete and masonry. With a total length of 250 mm and a chisel edge of 22 mm, it is ideal for cutting narrow joints in concrete and masonry. It is compatible with the SDS plus fitting system and can also be used directly with SDS plus hammers with a rotation stop.