Hydro-expanding mandrel in the form of a push-on milling arbor

• Centring of the blade, thus achieving a balance between the radial fitting tolerance between handling and drilling

• Improved concentricity                                     Hydrodehndorn Gruppe                                                          

• Smoother milling sequence

• Improved surface quality                                                            

• 50% increase in service life

• 25% reduction of cutting costs