For nearly 100 years, Sunnen has built a global business around delivering the highest levels of precision to our customers.

Today, we deliver honing machines, tools and abrasives for the future. Sunnen's extensive research & development commitment continues to develop machine components that improve …

Sunnen’s patented machine uses a tool known as a lap, which resembles a honing mandrel but with grooves instead of abrasive stones. As the lap enters the bore it spreads a loose abrasive …

Catalogs Precision Honing Supplies Engine Honing Equipment Tube Honing Tooling and Accessories

Tube Honing Machines A tube honing machine has a rotating abrasive tip for enlarging holes to precise dimensions. Sunnen’s versatile tube honing systems are designed for a wide range of …

Sunnen’s honing machines and accessories set the industry standard for consistency and reliability while creating exceptional finished products. Correct taper, bow, barrel shape and …

With nearly a century of technological leadership, Sunnen has the solution for the precision honing of small engines. No matter what the application–lawn mowers, chain saws, leaf …

Brochures Honing Machines Vertical Machines VSS-2000A: VSS® Series 2 Single Stroke Honing® System

We’ve grown from a supplier of stand-alone honing machines into a global manufacturer offering complete bore sizing solutions for high-production automotive component manufacturing.

The industry’s largest selection of honing machines: horizontal or vertical, single or multi-spindle, automated or manual, standard or customized.