Related Clues:

• Hackers
• Scale parts
• Grind needs?
• Lumberjacks' choppers
• Logging tools
• Woodcutters' tools
• Timberland tools
• Vocal inflections
• Improves, as one's muscles
• Symmetry lines
• Woodworkers' tools
• Cuts from the staff
• Musical pitches
• Lumber-camp implements
• Tree-chopping tools