Hardened drop forged steel SDS Plus chisel with shot blast finish. For general breaking up and demolition work. Can be used on all masonry, stone, brick and concrete. 14mm round shank. Compatible with all SDS Plus machines including Silverline and GMC. Hardened drop forged steel SDS Plus chisel with shot blast finish. For general breaking up and demolition work. Can be used on all masonry, stone, brick and concrete. 14mm round shank. Compatible with all SDS Plus machines including Silverline and GMC.