It has very long base-jaws to facilitate upper clamps displacement and tighten all.
Cast-iron or steel body of great sturdiness jaws, screws and brackets are made rectified and tempered steel.
All independent chuck have direct coupling to DIN-55026 / 55027 / 55029
Technical datas of the type of coupling
Coupling ASA B 5.9 type D1 pin Camlock DIN 55029 (ISO 702/II)
Coupling DIN 55027 - 55022 with stud and nut (ISO 702/III)
Coupling ASA B 5.9 type A2 with loops bore DIN 55026 - 55021