Manufacture custom tooling solutions, specialized cutters, and bespoke boring bodies with Boring Bar Blanks HSK Tool Holders. Engineered for custom machining applications on CNC equipment utilizing DIN 69893 HSK spindle connections, these blanks feature a pre-ground, fully hardened HSK taper shank paired with a soft, machinable steel front section. This combination allows toolmakers and machinists to turn, mill, bore, and case-harden custom-engineered tool bodies while preserving true HSK spindle seating accuracy, dual-face contact rigidity, and high rotational stability.