Before revision: Standard chucks and parallel-shank carbide-tipped drills have been largely superseded by SDS chucks and matching drills, that have been designed to better withstand and transmit the percussive forces.
After revision: (spline shank)Standard chucks and parallel-shank carbide-tipped drills have been largely superseded by SDS chucks and matching drills, that have been designed to better withstand and transmit the percussive forces.