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:
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
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.