Fowler 53-670-002-0 Micrometer Calibration Set

Features:

• Grade Ø
• 11 Pc. 9 rectangular gage blocks and two optical flats.
• Includes NIST Certificate.
• Contains one block of each of the following sizes: 0.0625, 0.100, 0.125, 0.200, 0.250, 0.300, 0.500, 1.000 & 2.000"
• Two optical flats that vary in size by 0.0125" which  allows checking anvil faces at half revolutions of spindle for measuring flatness.
• Supplied with fitted wooden case