Riken Presicion Square JIS Standard/ I-Type Precision Square/ Flat Heavy Square/ Precision Cylindrical Square
Precision Square with Base JIS 1st Class JIS 2nd Class
JIS 1st Class Accuracy
S1-50 / S1-75 / S1-100 / S1-150 / S1-200 / S1-300 / S1-500 / S1-750 / S1-1000
JIS 2nd Class Accuracy
S2-50 / S2-75 / S1-100 / S1-200 / S1-300 / S1-500 / S1-750 / S1-1000
JIS 1st Class Accuracy
HS1-50 / HS1-75 / HS1-100 / HS1-150 / HS1-150 / HS1-300 / HS1-500 / HS1-750 / HS1-1000
JIS 2nd Class Accuracy
HS2-50 / HS2-75 / HS2-100 / HS2-150 / HS2-200 / HS2-300 / HS2-500 / HS2-750 / HS2-1000
Precision Square
1S-75 / 1S-100 / 1S-150 / 1S-200 / 1S-300 / 1S-500
Knife Edged Squares I-Type
S-75 / S-100 / S-150 / S-200 / S-300
Flat Heavy Square
AS-75 / AS-100 / AS-150 / AS-200 / AS-300
Precision Cylindrical Squares - CS-100 / CS-150 / CS-200 / CS-300 / CS-400 / CS-500
