Blocking and Polishing

Insert (code: 4007)

Size: по таблице

To be used during polishing the top of a diamond in a polishing tang (Ref.4045). There are four radial slots on the side of functional hole that prevent from diamond movement and allow polishing the top of square diamonds when setting them in the slots. 
Material: copper, brass 
Stem diameter, mm: 4 
Stem length, mm: 16…18