Original MK End Brushes - Hard Bristle 1/2"L x 3/16" Diameter

These end brushes offer a significant reach with a bristle length of 0.50 inches (approximately 12.70 mm), making them the ideal choice for extra-deep cavities. The hard bristles are densely packed to maintain a vertical orientation, allowing the jeweler to polish the very bottom of deep holes or intricate lattice work. With a diameter of 0.18 inches, they remain narrow enough to enter small openings while providing a substantial abrasive surface for thorough cleaning. They are an essential tool for repair shops that frequently handle antique or complex estate jewelry requiring deep, internal restoration.