Lisle Brake Cylinder Hone 10500 — 11/16"–2.5" bore, two 240-grit square-ended stones for blind/step cylinders

Lisle 10500 is a two-stone brake cylinder hone designed to quickly and evenly finish cylinder bores from 11/16" to 2 1/2" (17.4–63.5 mm) with controlled pressure and square-ended stones for blind or step-cut cylinders.

If you're rebuilding wheel cylinders or master cylinders, the Lisle 10500 gives a compact, hand-operated way to restore a proper crosshatch and remove glazing without over-removing metal. The tool uses two 240-grit stones, each 1 1/8" long, that are shaped with square ends so you can reach the very ends of short or stepped bores. Designed for precision rather than aggression, the hone lets you apply consistent pressure for either a light polish or a more traditional hone finish using the same grit.

How does the Lisle 10500 work inside tight brake cylinders?

The hone expands inside the bore and the dual stones rotate to produce a uniform crosshatch pattern. Its short, square-ended stones permit contact right up to the ends of step-cut or blind cylinders where long-stone hones would miss material. Turning the hone while applying gentle pressure produces the desired surface texture without excessive metal removal.

• Expands to fit 11/16" to 2 1/2" (17.4–63.5 mm) bores.
• Two 240-grit stones deliver a consistent finish.
• Square stone ends reach blind and stepped cylinder ends.
• Hand-operated for controlled removal and finishing.

What results can I expect after honing with this tool?

You should get an even, uniform crosshatch or light polished surface appropriate for sealing and wear life in brake cylinders. Because the hone uses a single grit and controlled pressure, it helps avoid creating overly rough or excessively smoothed surfaces that harm seal seating. The short stones help ensure the whole bore length is treated, including tight or offset features.

• Consistent crosshatch suitable for seals and reassembly.
• Even finish from end to end, including blind spots.
• Reduces glazing while minimizing material removal.

How should I use and maintain the hone for best performance?

Use light, steady pressure and rotate the tool evenly while moving it in and out to avoid localized wear. Clean the stones and body after each session to remove abrasive debris and brake fluid residues. Replace stones when they become rounded or worn beyond useful length to ensure full contact to the bore ends.

• Apply gentle, consistent pressure—don’t force the stones.
• Move the hone in and out for full-length coverage.
• Rinse and dry stones and tool after use; inspect stones regularly.
• Swap in new 240-grit stones when worn or rounded.

Can this hone handle different cylinder geometries and sizes?

Yes — the Lisle 10500’s range covers most brake and master cylinder diameters while the square-ended stones address short, stepped, and blind bores. For very large or unusually shaped cylinders, check that the maximum 2 1/2" diameter and the stone length are suitable. This hone is optimized for common automotive brake applications rather than large hydraulic or industrial cylinders.

• Fits bore diameters from 11/16" up to 2 1/2" (17.4–63.5 mm).
• Square-ended stones work in step-cut and blind-end bores.
• Ideal for wheel cylinders, small master cylinders, and similar parts.

Who this is for: The Lisle 10500 Brake Cylinder Hone is for automotive technicians, restoration hobbyists, and DIY mechanics rebuilding small hydraulic components who need a precise, hand-operated hone that reaches the ends of short and stepped bores. If you require controlled material removal, predictable surface texture, and the ability to finish blind-end cylinders without specialized machinery, this compact two-stone hone is a practical tool to keep in your shop kit.