Hoppe's 9 Phosphor Bronze Brush 20 Gauge Shotgun Bronze. Hoppe's designed these Gun Brushes with heavy-duty bristles that scrub away fouling to ensure your firearm is performing at its highest capacity. These Hoppe's 9 Phosphor Bronze Gun Brushes won't damage your firearm's finish and they are incredibly effective at cleaning out lead. Get the multi-directional scrubbing action you need at the work bench with these Hoppe's 9 Phosphor Bronze Cleaning Brushes. Specifications for Hoppe's 9 Phosphor Bronze Brush: Manufacturer: Hoppe's 9 Quantity: 1 Color: Bronze Fabric/Material: Bronze Brush Threads per Inch: 8-32 Additional Features: Standard Condition: New Features of Hoppe's 9 Phosphor Bronze Brushes: Stout bristles for efficient cleaning Most effective on lead Package Contents: Hoppe's 9 Phosphor bronze brushes 1312P: Hoppe's 9 Phosphor Bronze Brush - 20 gauge