Hammer/Drill/Driver Charger Refresh Button Model SF 180-A, an 18-volt cordless cam-action hammer/drill/driver, allows construction and maintenance workers to maneuver in tight areas or corners. It is offered with two battery options: a 2.0 amp-hour nickel cadmium or 3.0 amp-hour nickel metal hydride. Hiltis rapid charger, which comes with the 3.0 amp-hour NiMH battery, features a button that helps refresh batteries after every 40 charging cycles. The SF 180-A also features a 15% increase in gear teeth height for hard-hitting hammer performance. Hilti Inc.; 800/879-8000; www.us.hilti.com