Abbot-Robinson Mounted Brushes - #12 Mounted Hard Brush-3/4" Diameter

This Robinson 12 brush is a larger version of the hard-bristle series, measuring 0.75 inches (approximately 19.05 mm) in diameter for broader coverage. It is designed for jewelers who need to polish larger surfaces while still benefiting from the aggressive "push" of a stiff-bristle brush. The high-density bristle arrangement ensures that the brush does not "splay" out too much during high-speed rotation, maintaining a consistent contact patch on the workpiece. It is particularly effective for the initial stages of rouge application on textured or heavy-cast jewelry designs.