Diablo's SDS Plus and SDS Max Dual-Tooth Flat Chisels deliver extreme durability and stability in general demolition work, adjustment work, restoring joints and clearing reinforcements. A unique heat treatment process strengthens the steel body to withstand the stress and impact of high-powered hammer drills in concrete. The Dual-Tooth jam-free head demolishes concrete by creating multi-directional fractures for faster material removal. Self-sharpening tip increases productivity and extends the tools life. Optimized for maximum performance in corded and cordless SDS Plus and SDS Max rotary hammers