Difference Between BT and HSK Tool Holders
DIN 5482 BT and HSK Tool holders are used for high precision tool holders, and both have their qualities. HSK Tool holders are symmetrical and used for high precision tooling, and BT Tools are also used for high precision and high-speed tools. In the BT Tool holder, due to radial growth, the holder is pulled deeper into the taper, which leads to a loss inaccuracy. In HSK Tool holder’s retention system is unable to pull the taper, which makes them more accurate? Tool holders mainly comprise 4 parts which are Retention Knobs, Taper, V-flange, and Collect points. Retention Knobs: Retention knobs help the tool holder be in place; it helps keep it in the spindle. So the tool must not go flying separated during any machinery operations. Taper: This is a part of the tool holder which is conical in shape and has a tolerance level of 0.0002. The tapers are different in both BT and HSK tool holders. V-flange: this part of the tool holder locks the automatic tool ch...