Boston Gear YA84 Spur Gear, Cast Iron, Inch, 20 Pitch, 0.625\ Bore, 4.300\ OD, 0.500\ Face Width, 84 Teeth
- The product is for toys gear spare parts package..
- The great tools for all kinds of DIY cars, robots, model making accessories..
- Suitable for DIY model production technology..
- This is the most complete gear set, includes 80 kinds of gear parts. It can meet your DIY needs.