Achieve professional bore finishing results right in your own shop. Our Flexible Cylinder Hone is the ultimate solution for mechanics and DIY enthusiasts looking to deglaze and refinish cylinder walls without specialized machinery. Whether you are working on a 3-inch bore engine block, a hydraulic ram, or a brake cylinder, this tool delivers the essential cross-hatch surface pattern required for optimal lubrication and ring seal. Unlike rigid stones that can be unforgiving, this ball-style hone utilizes a flexible brush construction that "floats" within the bore. This ensures equal pressure is applied even if the cylinder is slightly out of round. It effectively removes high spots, burrs around ports, and old glazing material. Simply attach it to your variable-speed drill, apply lubrication, and stroke the bore for a few seconds to restore a factory-like finish. A must-have tool for any engine rebuild or maintenance project.