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Guhring's Micro precision drills

For the accurate production of minute holes from 0.05mm

Whether small or large batch sizes, whether high-performance machines with internal cooling or non-rigid conditions: Gurhing's range includes the optimal solution for the production of the smallest holes.

Guhring’s micro-precision drill range including solid carbide and powder metallurgical high speed steel (HSS-E-PM) is optimally suitable for the production of the smallest holes in all fields of application. The manufacture of highly accurate small diameter holes requires maximum quality and is one of the most demanding drilling operations.

For these tasks and for every user, Guhring’s comprehensive standard range includes the optimal micro-precision drill.

 

Micro precision drill(left: Minute precision holes)

 

Carbide ExclusiveLine micro-precision drills also with internal cooling:

Carbide micro-precision drills, available with or without coolant ducts, enable the high performance machining of most materials. The micro precision drills show their full performance capability in the series production of large batch sizes with stable machining conditions and high-performance machines with high spindle speeds. The 2-facet point grind with ground cutting edge honing enables high cutting values as well as optimal chip breaking facility.

Carbide micro-precision drills without internal cooling in the diameter range from 0.5 to 3.0mm are available for the drilling depths 4xD and 7xD.

Especially for the machining of stainless steels and special alloys as well as deep holes carbide micro-precision drills 5xD, 8xD and 15xD with internal cooling prove their performance capability. When applying Guhring's carbide micro-precision drills for holes up to 15xD then pecking is not necessary thanks to the optimised tool geometry.

Carbide Micro-precision drills

Guhring's carbide micro-precision drills without coolant ducts cover the extensive diameter range from 0.1mm to 3.0mm. With carbide micro precision drills high cutting parameters and longer tool life can be achieved. The combination of special geometry, coating and carbide substrate offers high hardness, heat-resistance and wear resistance that provides the high performance capability of carbide micro-precision drills.

HSS-E-PM Micro-precision drills

Guhring's micro-precision drills made of high-performance powder metallurgical HSS-E steel excel thanks to very thigh wear-resistance, toughness and cutting edge stability, that is especially important for difficult and less stable machining conditions. The powder metallurgically produced HSS-E-PM steel consists of a very homogenous structure that has a direct positive effect on the consistently high performance capability of the micro-precision drills.

Therefore, HSS-E-PM micro-precision drills are, for example, suitable for the application on multi-spindle machines, machines with limited speed capability or for the production of small to average batch sizes as here they provide high quality at an optimal price-performance-ratio.

To meet increased demands on tool life and cutting parameters HSS-E-PM micro-precision drills in the standard range are also available with TiN-coating from Guhring.

Special solutions to customer requirements:

In addition to the complete micro-precision drill range, Guhring also provides HSS-E-PM micro-precision drills and carbide micro-precision drills as special tools on request. It includes:

Guhring's HSS-E-PM and carbide micro-precision drills are used in a wide range of applications.

For the machining of injectors and injector nozzles customers in the automotive industry rely on micro-precision drills from Guhring. They are also applied for the machining of pumps and hydraulic systems and mould ventilation holes for the production of tyres. Miniature precision components such as shafts, bushes and bolts are accurately machined with Guhring's micro-precision drills. Furthermore, they are applied in the production of drive shafts in the dental technology.

In the watch and jewellery industry the accurate machining of minute components is also of great importance. Here, chain links and gear wheels are machined with Guhring's micro-precision drills.

In the electrical industry micro-precision drills are suitable for the production of holes in plug connectors. The energy technology utilises micro-precision drills from Guhring for the production of heat exchangers that transfer thermal energy from one source stream to another. Mincing machine matrixes or colanders applied in the food industry are another field of application for the very small diameter precision drills from Guhring.