Abstract: A hand drill for rotating a cutter has a housing having a motor therein. The housing has a first end and a second end. A first planar surface of the housing extends between the first and second ends, the first planar surface being parallel to an axis of rotation of a chuck driven by the motor and extending from the first end of the housing. A second planar surface of the housing also extends between the first and second ends and is parallel to the axis. The first and second planar surfaces are spaced a first and second predetermined distance, respectively, from the axis, the second predetermined distance being different than the first predetermined distance. The first and second planar surfaces enable the hand drill to be used to drill precision holes without the use of a drill press.

Abstract: The indicator cap (22 or 80) is formed of a base connected to a transparent tube (46) forming a cylindrical cavity (48) receiving a colored or opaque float (70). The position of the float (70) within the tube (46) indicates the level of the electrolyte in the cell (20) of the battery (10). The float contains an upper collar (74) which cooperates with top vent (60) or side vent (92) to seal the cell. The collar (74) engages the annular disc (76) or apertured collar (86) to prevent the float (70) from falling into the cell (20) when the cap (22 or 80) is removed from the aperture (24).