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Category: Dimensional Gages and Instruments
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For nearly 100 years, Sunnen has built a global business around delivering the highest levels of precision to our customers. Combining a robust distribution network with industry-leading technology, Sunnen integrates bore creation, sizing and finishing into one turnkey solution. Together, we'll achieve extraordinary results.

Celebrating a Century of Innovation

2024 marks a significant milestone for Sunnen — a century of innovation. Over the decades, Sunnen dedicated itself to precision, performance and partnership. Our commitment to these three tenets has allowed us to continually reach new heights in manufacturing. Before we turn our attention to the future, our team wants to reflect on how far our organization has come.

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Technical Articles

Answering 5 Honing FAQs with Modern Machine Shop (Machine Tool Accessories) As one of the most common machining operations, holemaking presents manufacturers with plenty of options. Depending on bore diameter and surface finish tolerance, a shop might choose drilling,... (View Full Article)
Application Report: Gun Barrel Honing System Hits Bullseye for Pac-Nor (Grinding Machines and Finishing Equipment) Manufacturing precision rifle barrels has always been something of an art that involves hand lapping of the bore surface twice, before and after the rifling profile is cut or swaged in by a rifling... (View Full Article)