SIOUX 

VALVE SEAT GRINDER STONE  SET OF PIECES

VITRIFIED BOND 80 GRIT MEDIUM. 

 

OPTIMUM FOR 1702 BB HOLDER

STONE SIZES AS BELOW

2 1/2"

2 1/4"

 2" 

 1.7/8

 1.3/4"

 1.5/8"

1.1/2" 

1.3/8"

1.1/4"

1.1/8" 

STONE THREAD -11/16"