This standard specifies feeler gauges with a thickness of 3 mm or less and a length of 300 mm or less.
JIS B 7524:2008 Referenced Document
JIS B 0651 Geometrical Product Specifications (GPS) -- Surface texture: Profile method -- Nominal characteristics of contact (stylus) instruments
JIS B 0680 Geometrical product specifications (GPS) -- Standard reference temperature for the specification of geometrical and dimensional properties*, 2023-02-20 Update