Possible Clues:

• Woodcutters' tools
• Shop tools
• Some carpentry tools
• They work around the clock outside, witnessed by those handled by The Carpenters
• Labourers going around spotted tools
• Worker observed first of several cutters
• One of the workers was sent back to school for carpenters
• Wood cutters
• Manual tools
• Shakespearean birds not to be confused with hawks