gold tool® ring sizer machine with 12 collet
 
    ring sizer machine with 12 collet : 
total 12 collets (12.5 to 22 mm), 
machine dimension : 9"x7"x14", 
approx weight in. 8.600 kg. 
12 collets as above over details : 12.5/13.5/14.5/15/16/10.8/17.5/18.5/19.5/20.2/21/22 mm