Related Clues:

• Fine-tune
• Measure precisely
• Mark with graduations
• Make fine adjustments to
• Fix a gauge
• Ensure an accurate reading of
• Fine-tune an instrument
• Scale this sort of bail in a crate
• Make one's mark and graduate
• Box, boxing 1 across, born to measure
• Ran in relay, perhaps changing hands, wearing contrivance for broken bones
• Correlate instrument readings with a standard to check accuracy
• Not in a cast, maybe
• Adjust (gauge for accuracy)
• Check range of bacterial damage