TE 6-S and TE 6-C rotary hammer drills last 50 percent longer than the previous TE 5 model. For applications that involve brittle or delicate materials, they can drill at full speed while hammering at 30 percent of the full impact energy for low vibration and contact pressure. The operator can switch from drilling to chiseling mode instantaneously. A quick-release feature provides fast changes between ½-inch keyed and keyless chucks. Ergonomic features include a lightweight construction, D-handle grip, oversized controls and a padded side handle.