The Hole Story
News from the industry leader in bore creation and finishing

Sunnen acquires BTA Heller
U.S.-based honing systems manufacturer has acquired the premiere deep hole tooling and systems manufacturer to provide complete bore creation and finishing solutions.

Sunnen now offers deep hole drill tooling  and systems after its acquisition of BTA Heller.
Sunnen Products Company has acquired BTA Heller, a US-based manufacturer of deep hole tooling and systems for primary hole generation. This move aims to expand Sunnen's industry leading honing expertise to include tooling for initial hole creation and other complementary bore sizing and finishing processes. The company will retain the BTA Heller name as a division of Sunnen Products Company, as the companies build on natural synergies to offer complete bore creation and finishing solutions.
"BTA Heller is a natural fit for Sunnen. Our companies complement each other very well and BTA Heller's reputation in the industry for deep hole drilling expertise is unsurpassed," said Chris Miltenberger, President and COO of Sunnen Products Company. "The transfer of knowledge between the two companies will create a unique value proposition for our customers. And, with this acquisition, no other deep hole/BTA company will have Sunnen's global presence for technical and post-sale support."
Sunnen recently introduced the new SHD series skiving and roller burnishing system (see article at right) with tooling supplied by BTA Heller.  " We have developed various tools and systems for creating intricate deep holes and profiles from 0.5 in. to 36 in. diameter," said Mark Sollich, Business Development Manager, BTA Heller. "To combine forces with Sunnen and its bore geometry expertise creates a company not found anywhere else in our industry. No one company can provide a total bore solution from the creation of the primary hole to the final bore finish specifications like we can." 

Sunnen Products Company
7910 Manchester Rd.
St. Louis, MO 63143

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Sunnen automates skiving and roller burnishing
New SHD systems deliver consistent finishes and fast cycle times, automatically.

Sunnen now offers a cost effective solution for high production applications for hydraulic cylinders. The SHD skiving/roller burnishing systems are 80 to 90 percent faster that traditional honing and are engineered to deliver precise tolerances and quality surface finishes.

Sunnen offers the complete solution with machines, tooling, coolants, coolant systems, chip management and global service and support. 

Sunnen's SHD skiving/roller burnishing system.

The new skiving/roller burnishing system uses tooling from BTA Heller. Sunnen representatives are now a single source for skiving/roller burnishing systems, tooling and support. 

See a video of the new SHD in action HERE.

And, for more information on Sunnen's automated skiving/roller burnishing system, visit