Precise Micrometer Checking Gage Block Set, 12 Pieces, Grade AS-0 – 4101-0032

• 12 Piece Micrometer Checking Gage Block Set
• Grade AS-0.
• Grade AS-0= Grade 2(At) : +4/-2 millionth.
• 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.
• Manufacturer’s calibration certificate included.
• Complete with fitted case.
• Shipping Weight: 1.5 lbs