Key Features3 – Pack Utility BrushNylon BrushBronze BrushStainless BrushDetailsBirchwood Casey Utility Brushes come in a 3 pack with different style brush ends. Nylon brush: Use on delicate blueing and engraving. Bronze brush: ideal for tough deposits. Stainless brush: Use for the toughest removal of deposits.41104 – Utility Brushes 3 – Pack