Cutting tool and wear parts substrates have benefited from enormous engineering advances over recent decades. Thin film coatings, when properly applied, improve tool and part characteristics and functionality. They increase surface hardness, lower the friction coefficient, and thermal conductivity while providing a chemically inert surface. As a cutting tool manufacturer, DPP offers a level of coating expertise without equal in the industry. We are a leader in developing and applying new coating technology. Today, DPP offers a full range of high performance PVD (Physical Vapor Deposition) coatings to meet customers’ diverse needs.

We also provide decoating service without damaging the tool shape or dimensions.


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Diversified Precision Products has joined ARCH Cutting Tools and is now operating as ARCH Cutting Tools – Spring Arbor. This change broadens our product offerings to customers and strengthens our position as Your Complete Tool Making Authority®.