Related Clues:

• Merest bits
• Scintillae
• Stand-up's routines
• They drill through stuff
• Tiny but detectable amounts
• Is Greek?
• Vowels in Greece
• Quite small amounts
• Tiniest bits
• Things fitted in drills
• Teensy bits
• Extremely small amounts
• Minute bits
• Drill set items
• Parts of a comic routine