For clamping and centering of workpieces with internal bore. Exact self centering with a precision of 0, 025 mm. Due to the clamping segments being ground, workpieces with raw andor machined surfaces can be frictionally connected, centered and held down at the seats. Large adjustment stroke and a low building height are a feature of the centering clamping element. Activate from either top or bottom. MaterialBody Tool steel, hardened, blackenedSpring Stainless steelClamping segments Stainless steel 1.4112, hardened and groundAssemblyAssembly instruction for mounting from the top: Take-off clamping plate and screw. Fasten body by means of threaded pin via WS2. NotesSpecial types on request, e.g. tandem function. OrdertableAssembly examples