Flex-Hone brushes—also known as bore honing brushes—consist of abrasive balls mounted on a flexible twisted-wire stem, typically featuring silicon carbide abrasive. They utilize centrifugal force to automatically conform to the bore wall, making them ideal for deburring, polishing, and removing machining marks in through-holes, blind holes, and cross-holes without compromising the hole's original diameter or roundness..

High-quality honing brushes, with abrasive balls in silicon carbide, are self-centering and therefore have a homogeneous abrasive effect. Perfect for honing cylinder walls, but also for smooth finishing of hydraulic or pneumatic cylinders, bronze bushings, steel tubes, smooth barrels.