A powerful and durable hammer mechanism lets you drill deeper, larger holes in masonry and concrete in less time than with cordless hammer drills.

In rotary-percussion mode, the tool provides both a rotary drilling and hammering action. Use SDS-Plus shank drill bits for fast penetration into masonry materials. Note: SDS-Plus and SDS-Max bits are not interchangeable. Use the rotary-only mode for general purpose drilling and driving fasteners (requires a chuck adapter or a magnetic bit holder). In the percussion-only mode, the tool provides only the hammering action. Use this mode when working with chisels and other masonry tools (see Chisels for Rotary Hammers).