Welcome to Guhring

From drill pioneer to complete supplier

Guhring is one of the world-wide leading manufacturers of rotary precision tools for metal machining. With more than 8,000 employees world-wide, 3,500 in Germany, in excess of 70 production locations in 48 countries the company develops, manufactures and distributes innovative cutting tools. Guhring is present on all important markets: Customers in the automotive industry, the aerospace industry or in general engineering count on trendsetting tools manufactured to uniform quality standards of the highest level. 

Accompany us on a journey through time of our company history.

https://www.guehring.de/

Also with diameters above 40.00 mm the Guhring HR 500 technology is the first choice for high-performance reaming. Numerous intelligent solutions ensure maximum cutting values and quality also with large diameters:

Diversity for perfect machining results

HR 500 GT tool heads are available as a semi-standard range with short delivery times in the diameter range > 40.0 to 76.2 mm in the following material specific designs:

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• Carbide-tipped with nanoA-coating for stainless steels, GGG 60, GG, special alloys and non-ferrous metals

• Carbide-tipped with Signum-coating when demands are high on surface finish quality, for GG and GGG 60

• Cermet-tipped for steels and GGG 40/50

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Furthermore, we manufacture special tools to customer specific specifications on request.

Optimal cooling lubrication

Thanks to the newly developed, patent pending, redirection screw on the face side of HR 500 GT tool heads, the cooling lubricant reliably reaches the cutting edges. A blocking of the coolant exits by the chips is not possible. Thanks to the especially flat design of the redirection screw the machining of blind holes is possible directly up to the base of the hole.

If required the redirection screw can be removed when machining a blind hole.