10 Piece Micrometer Checking Gage Block Set ~ Grade AS-0. ~ Grade AS-0= Grade 2(At) : +4/-2 millionth. ~ For checking various spindle positions of entire micrometer range. ~ Meet or exceeds U.S. Federal specification GGG-G-15C and ISO 9000 requirements. ~ Gauge blocks included are .105, .210, .315, .420, .500, .605, .710, .815, .920 &1.000″. ~ Optical flats for checking micrometer flatness are .500 & .5125″. ~ Manufacturer’s calibration certificate included. ~ Complete with fitted case. Grade AS-0= Grade 2(At) : +4/-2 millionth. For checking various spindle positions of entire micrometer range. Meet or exceeds U.S. Federal specification GGG-G-15C and ISO 9000 requirements. Gauge blocks included are .105, .210, .315, .420, .500, .605, .710, .815, .920 &1.000″. Optical flats for checking micrometer flatness are .500 & .5125″.
