Sealey Cylinder Hone - Triple Leg - 25-64mm - Medium Stones - Silver

A cylinder hone is used to create a cross-hatch pattern on the cylinder walls. This pattern helps retain oil, which is crucial for proper lubrication of piston rings and seals, ensuring smooth operation and preventing premature wear.

Medium grade stones are generally used for removing minor imperfections, rust, or glazing from the cylinder wall. Fine grade stones are used for finishing the surface to a smoother finish, typically after using medium stones, to ensure optimal oil retention and seal compatibility.

This specific Sealey VS023 model is designed for small and medium brake cylinders. While the principle is similar, engine cylinders often have larger bores and require different honing tools and stone grits.

It is recommended to use a slow to medium speed on a variable-speed drill. Start with a lower RPM and adjust based on the feedback from the tool and the cylinder surface. Too high a speed can generate excessive heat and reduce the effectiveness of the stones.

Stones should be replaced when they become significantly worn down, rounded, or lose their abrasive quality. If you are not achieving the desired surface finish or are experiencing excessive cutting times, it may be time to replace the stones.

Please refer to the Sealey warranty documentation for the specific warranty period applicable to this product. Typically, Sealey tools come with a manufacturer's warranty against defects.

Ensure the adjustment mechanism is clean and free from debris. Check that the central nut is not overtightened.

Verify that the hone is centered within the cylinder bore and that consistent pressure is applied. Ensure the drill speed is appropriate and steady.

Reduce excessive pressure during use. Ensure the cylinder bore is clean before honing to avoid grinding abrasive grit. Consider switching to finer stones if appropriate.