Sold: An used Emco 4-jaw ø152mm Independent Chuck 

Direct Emco short taper and 3xM8 bolts similar to DIN 55021 
Fits Emco Emcomat 8.4 / 8.6 and Emco Compact 8 
Fits later version of the Emco Maximat V10-P with short taper 3xM8

Reversible jaws 
Emco order number BU 980807 
Emco reference number 230506
Not original key
Weight 5.8Kg