Left section
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Digital caliper (looks like a 6-inch model)
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Micrometer (0–1 inch)
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Long vernier caliper (12" range)
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Depth gauge rod / extensions
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Small square / adjustable gauge block
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Misc. tips for micrometer/caliper tools
Right section
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Dial caliper (6-inch)
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Telescoping gauge or dial depth gauge (the long vertical one)