505BTSSQHD - Power Battery Top Post Cleaner with Quick-Disconnect Hex Stem - Use with Quick-Disconnect Driver or Power Drill

Power Battery Top Post Cleaner with Quick-Disconnect Hex Stem - Use with Quick-Disconnect Driver or Power Drill   - 1/4 inch Stainless Steel Quick-Disconnect Hex Stem - Use on SAE Top Post Terminals - Works on both positive and negative terminal posts - Brush wires have a 70° bend - Clean up to 50 posts per minute - Maximum speed 400 to 800 RPM   Note: Cleans up to 1000 battery posts in one direction. After the effectiveness diminishes, extend the life of this cleaner by reversing the drill direction. Specifications Stem Size: 0.25 in (6.35 mm) Stem Length: 1.02 in (25.9 mm) Max Post Diameter: 0.71 in (18.0 mm) Max Post Length: 0.625 in (15.9 mm) Length: 2.50 in (63.5 mm) Width:  1.63 in (41.4 mm) Height: 1.63 in (41.4 mm) Weight (lbs): 0.10 (46 g)