Griptru: A unique proven micro adjustment device enables concentricity to be adjusted within 0.005mm FIM. Repetitive gripping is possible with no more than 0.013mm variation. 6 jaw chucks allow the gripping of thin walled components with minimum distortion. The inside and outside hard jaws are supplied as standard. 

Pratt Burnerd 250mm Diameter Chuck 
Bore = 75.9mm 
Recess = 200mm 
Mounting = 3 x M12 on 224mm P.C.D. 
Rear mount
1x6 Jaws (see pictures and Video) and key
Part Number 1260-02505
Weight 37Kg