To Improve the surface finish and to control uniform hole size of our "gun drilled" and "trepanned" capabilities, we offer honing.

Horizontal honing gives a capability of .500" diameter to 12.00" diameter holes by depths to 9 feet. These machines are used extensively for special tubing, barrels, landing gear and typical parts.

The Sunnen Cylinder Kings handle a wide variety of bore finishing in the larger, heavy or odd shaped work pieces

The Sunnen Manual and Stroker machines are used for the smaller holes.

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