What do those wrenches mean?
— Beginner
- May need a screwdriver
- No disassembly
- No training required
— Do-It-Yourselfer
- Need basic hand tools
- Some disassembly required
- Some repair experience helpful
— Skilled Repair Person
- May need specialized tools
- Complicated disassembly required
- Repair experience needed
— Trained Mechanic
- Specialized tools or machinery needed
- Complex testing and calibration
- Advanced training required
