75pcs Plastic Crown Single Double Worm Gear Set Belt Pulley DIY Tool
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- 75 pieces Plastic Crown Single Double Worm Gear Belt Pulley DIY Tool Set.
- The largest gear is 29mmPulley length is 126mm.
- 75 pieces of gear that can match each other, all combined into gears, these gears are suitable for shafts.
- Containing worm, straight teeth, shaft gear, the tooth crown, the double reduction gear.
- DIY science and small production, product design, mechanical model.
- Spindle straight tooth : 9 kinds (each one).
- Crown gear: 11 kinds (each one).
- Single gear: 12 kinds (each one).
- Double gear: 19 kinds (each one).
- Belt pulley: 7 kinds (each one).
- Worm: 2 kinds (each one).
- Connecting rack: 2x.
- Axle sleeve: 6x.
- Tee collar: 1x.
- Gear-B: 1x.
- Rubber band (belt): 5 kinds (each one).