Powered by a high-efficiency motor and CPC battery technology, the TE 4-A18 cordless rotary hammer drills switch between hammer-drilling and drilling-only modes. With an optimum drilling diameter range of 1/4 to 1/2 in., the tool drills anchor holes or through holes for concrete and masonry applications. The tool features a drop-resistant housing to achieve maximum protection of components, a keyless chuck for fast and easy drill bit changes, and variable speed trigger for operator control in all drilling positions. Hilti Inc. 800-879-8000. www.us.hilti.com