Measurement and test
Buy measurement tools once — cheap calipers lie quietly. One good DMM beats three novelty meters.
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6" digital caliper (stainless, IP54+)
Daily dimensional checks and fit-ups.
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True-RMS multimeter (fused inputs)
Motors, drives, and HVAC controls.
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USB oscilloscope (2-channel, 50MHz+ class)
Embedded debug without a full lab rack.
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Torque wrench (click, calibrated range)
Repeatable fasteners on assemblies.
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Dial indicator + magnetic base
Runout and alignment checks.
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Precision screwdriver set (ESD)
Electronics enclosures without cam-out.
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