ER40 Collet Chuck with HSK63F connection

-Made with special high strength steel;
-Made with special high strength steel;
-precision marking on all coupled surfaces;
-interchangeable biconical collets with axial notches interspersed and opposed, for the integral cylindrical clamping of the tool;
-extensive clamping range below the nominal collet diameter -0.7mm;
-spindles specifically designed for right or left-hand rotation with self-locking antagonist threads;
-Tool clamping ring with semi-pitorical radial grooves (Woodruff) for sector wrench;