Designed to drill larger holes than a SDS-drive hammer, this model uses spline-shank drill bits (see Spline-Shank Masonry Drill Bits and Spline-Shank Masonry Drill Bits). A powerful and durable hammer mechanism lets you drill deeper, larger holes in masonry and concrete in less time than with hammer drills.

Use the rotary-only mode for general purpose drilling and driving fasteners (requires a chuck adapter or a magnetic bit holder). In rotary-percussion mode, the tool provides both a rotary drilling and hammering action. 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).

This rotary hammer has a vibration reduction system for increased user comfort, provides smooth starts, and won't slow down as you drill deeper. It also has a variable speed motor—the further you depress the trigger, the faster the speed. A built-in safety clutch protects you and the hammer if the bit gets stuck in your material. A chisel lock allows you to choose from 12 chisel positions to match the angle of many surfaces.