Bosch hammer drills:  The models have a grounding system and trigger switch that could cause ground wire abrasion and/or ground connector failure posing a shock hazard. In addition, the switch trigger could become stuck in the "on" position posing an injury hazard to the user.  Bosch 1/2 inch 2-Speed Hammer Drill with model number HD19-2, HD19-2D, HD19-2L and 1/2 inch 2-Speed Hammer Drills with model number HD 21-2 are included in this recall. "BOSCH" is printed in red lettering on the side of the drills.  Sold at: Home improvement, hardware and major retailers nationwide and various distributors from September 2009 through August 2010.        http://www.cpsc.gov/cpscpub/prerel/prhtml11/11051.html