gold tool gold testing stone this gold testing kasoti is a small, flat stone which can be used to test purity of gold items.
 to be used with gold testing keys an acids, use with acid test gold quality professional quality. 
available sizes in mm : 50x40, approx thickness in mm : 5/6,
 available sizes in mm : 50x50, approx thickness in mm : 5/6, 
available sizes in mm : 50x75, approx thickness in mm : 5/6, 
available sizes in mm : 60x40,approx thickness in mm : 5/6/8/10,
 available sizes in mm : 100x50, approx thickness in mm : 8/10/12,
 available sizes in mm : 150x100, approx thickness in mm : 10/12, 
available sizes in mm : 200x75, approx thickness in mm : 12/14/16,
 available sizes in mm : 200x100, approx thickness in mm : 12/14/16