Kleen-Bore A180P Patch Holder Brush 30 Cal,7.62mm Rifle #8-32 Thread The Patch Holder Brush Is Designed To Provide faster, More Efficient Cleaning. It Is a Combination Of a Bore Brush With a Slotted Patch Holder at The Front End To Create One Integrated Cleaning Rod Accessory. The bristles Are Made Of Phosphor Bronze. Quantity: 1 Bristle Type: Bronze Thread Pattern: 8-32