Related Clues:

• Hacker's implements
• Fir fellers
• Lumberjack's choppers
• Some weapons in the game 'Skyrim'
• Tree choppers
• Slasher film weapons
• Cuts lines on graph?
• Tree-cutting tools
• Cuts in state contributions following leader's departure
• x, y and z on a graph, perhaps
• These may cut lines on graph
• Things that might be on the chopping block?
• Lines of rotation
• x, y and sometimes z
• Ruthlessly reduces