Regis Manufacturing External Honing Kit

Regis Manufacturing has supplied engine builders and machine shops from Dallas, Texas since 1959, and its honing tools reflect that shop-floor heritage. In the external honing kit category, the company's offering centers on the General Automotive Flex-Hone Kit, a bundled assortment designed to cover the bore sizes an engine rebuilder most commonly encounters.

What Is in the Regis Flex-Hone Kit

The kit includes ten sizes of 180 grit silicon carbide Flex-Hones: 10mm, 1/2", 5/8", 3/4", 7/8", 1", 1-1/4", 1-1/2", 1-3/4" and 2". That range spans small-diameter passages such as cam bearing bores and similar tight bores up to larger cylindrical bores. The kit also adds 1/2 pint of Flex-Hone Oil and a flash drive with instructions and videos, so a shop can start honing with the proper lubricant and technique guidance in one package.

How Flex-Hones Work

Flex-Hones are not rigid stones. They are resilient, flexible honing tools with a soft cutting action. Each abrasive globule has independent suspension, which makes the tool self-centering, self-aligning to the bore, and self-compensating for wear. In practice, that means a technician can chuck the hone in a drill or similar driver and get consistent contact without elaborate fixturing.

The process is also gentle on the metal. This low-temperature abrading action exposes the undisturbed base metal structure to produce a long-wearing surface. The resulting surface is optically smooth and metallurgically free of fragmented, amorphous or smeared metal from previous operations. That makes it useful for deburring, blending, and finishing work where preserving dimensional accuracy matters.

Why Choose a Kit

• Size coverage: Ten diameters in one set reduce the need to track down individual hones mid-job.
• Fine finish: The 180 grit silicon carbide abrasive suits general finishing and cleanup of bores.
• Included lubrication and guidance: Honing oil and instructional media help new users apply the tool correctly.
• Engine-builder focus: The assortment is built around the diameters common in general automotive machine work.

Shopping Considerations

Match the hone diameter to the bore you are finishing, since Flex-Hones are sized to the bore and rely on the correct fit for proper contact. Choose the grit for the finish you need, and always use the recommended honing oil. For a broader look at what the brand offers, visit the Regis Manufacturing brand page. To compare options from other makers, browse the full External Honing Kit category.

Regis Manufacturing's long history serving machine shops and engine rebuilders makes its Flex-Hone Kit a practical, well-rounded choice for anyone who needs reliable honing across multiple bore sizes.