Hardened drop forged steel SDS Plus chisel point with shot blast finish. For general penetration 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 point with shot blast finish. For general penetration 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.