Druck steuert die Schneidenkraft beim Entgraten HSD Deburring tools Your specialist for Worldwide applications Project request Details Deburring at high speed Individual special solutions HSD Entgratwerkzeuge - Beispiele für vielfältige Anwendungen Slide Time saving
tools with multiple blades
Your advantages: High feed rates through pressure controlled blades Deburring with multiple cutting edges Deburring through the main bore Entgraten Stufenbohrung - mehrschneidige Werkzeuge entgraten gleichzeitig Querbohrungen Mehrschneidige Werkzeuge entgraten gleichzeitig mehrere Querbohrungen Werkzeug zum Entgraten von geschlitzten Rohren - innen und außen entgraten Project request Details
Slide Your advantages: Deburring of
cross holes, bore
exits, slots & grooves
Deburring of non-flat, curved or stepped intersections Pressure controlled cutting force, right / left rotation Cross bores from approx. 1.2 mm in serial application Langlöcher werden mit HSD entgratet Schlitze und unebene Bohrungsaustritte werden mit HSD entgratet Typische Geometrien mit Entgratwerkzeugen HSD entgraten Project request Details

Deburring bore holes


Deburring. Safe and efficient.

HSD deburring tools are used in highly automated processes for deburring of bores. The reasons for automation of deburring are often large quantities, short deburring times, high reproducibility of the result or the rationalization of manual deburring.

Remove the burr where it originates.

HSD tools are used in machining centers, lathes and milling machines, deburring stations or robot-guided in deburring cells. Deburring can be integrated into the process or added as a separate process step.


Workpiece and HSD tool - stepped bore and crossing bores

Bore entry, Stepped Bore, Slot, Groove, Bore exit

Several intersecting holes are machined through the main hole with only one deburring tool in one step. All intersecting holes are deburred, even with different diameters.

The smallest tool diameter currently used is about 2mm. This is the diameter of the main hole through which the tool enters. The smallest cross holes to be deburred are in the diameter range around 1mm.

Geometries to deburr by HSD - crossing bores of different diameters
Geometries to deburr by HSD - slots crossing bore
Geometries to deburr by HSD - curved or stepped bore exit and grooves

In forward and backward machining by the HSD tool in clockwise and anti-clockwise rotation, all edges of an intersection are deburred.

The cutting force is controlled directly by the pressure. This control by air (e.g. in the deburring station) or coolant (mainly in the machine) enables higher speeds and feeds. The necessary cutting force can be  adjusted optimally.

The cutting edges are flexible supported and are controlled by pressure, i.e. the cutting edges can be “extended” exactly at the cross hole to remove the burr. In addition, for processing the pressure at the cutting edges can be adapted to the burr strength and size to be removed.

The detached burr and existing chips are washed away by the coolant or compressed air flowing out at the cutting edges. This minimizes the influence on the roughness of the workpiece surface. Special cutting edges are used for particularly high surface requirements.

Deburring tools for larger bores

Frequently asked Questions

Owner Dr. Reinhard Nothnagel HSD-Entgraten

"The HSD deburring tools are tailor-made precisely to the customer's requirements"

We support you in solving the deburring task based on our decades of experience. The further development of the deburring tools is in our hands. We cooperate directly with the inventor, the Dr.Beier-Entgrattechnik.

Dr.-Ing. Reinhard Nothnagel
Company owner & managing director

Inquiry - Analysis - Advice - Order

The HSD deburring tools are special tools that are individually adapted and manufactured to the component to be deburred and the process.

The following information will be very helpful in advance:

  • Component drawing, sketch or photo of the location of the burrs to be removed
  • Short hint on the origin of the burr, machining sequence
  • Are there requirements for the chamfer or roughness after deburring?
  • Is a cooling medium or compressed air available? What pressure is on or can be set?