HSK (DIN 69893  Form A-C-E-F /  ISO 12164)
Hollow Shaft Taper ( HSK ) Clamping collet for the automatic tool change.
The tool standard of the 21st century is the Hollow Shaft Taper – HSK as per DIN 69893. With increasing speeds, feeds and accuracy requirements in modern machines the HSK machine spindle / tool interface has established itself in all regions of the classical metal cutting machinery.

Whether Machine Tools ( Milling, Boring ), Woodworking machines, Motor Spindles or Turning machines, this new international standard for tool holding has made high speeds, repeatability and machining accuracy possible.

The Clamping sets for HSK 25 till HSK 100 are available as per DIN 69893 / ISO 12164 for the automatic tool change in Form A, B, E, and F.

A central and axial transmission of the coolant medium is possible, other medium transfer modus can be incorporated with the corresponding spindle contour.

The Clamping collets are made with very high manufacturing tolerances and material quality to guarantee a long and reliable operational life.

All HSK Collets are 100 % interchangeable with OTT Jakob brand