Here's a quick look at the specs, features, pros, and cons of the Fein ASB18 hammer drill/driver. This information was excerpted from a tool test in the Spring 2015 issue of Tools of the Trade. The main story contains an overview plus runtime and power test data for all tools tested.
Battery: 18 volts; 4.0 Ah
Battery gauge: 4 bars; on battery
Weight (pounds): 4.91
Rpm: 0-550; 0-1,600
Hammer Bpm: 0-29,000
Other Features: LED headlight
Price: Kit $380
Includes: Tool; 2 batteries; charger; plastic case with foam insert
Country of origin: Tool China; battery Korea
Notes: A stronger tool in the product line exists—a four-speed, brushless motor drill/driver without a hammer drill function rated at 50% greater torque—model ASCM18.
Performance: Rated fair under heavy duty uses; better suited for moderate service. Lowest performer overall. Eighth in runtime. (See comparison tables in Main Story)
Comments: Simply outclassed by the competition in high-demand tasks.
Pro: Where this tool could compete, it posted respectably fast times in low gear operation.
Con: Only tool in the test without a side handle which really limits its usefulness for powerful work. No belt hook, and no mounts for one.