High-quality materials, exquisite craftsmanship, safe, reliable and durable, long service life, complete specifications, convenient and flexible use, and better cost performance.
This accessory is mainly used as an extension of the rotation of the shaft, in which the 150mm spring can be turned 360 degrees, so it is called extension spring.
Extension spring 3mm outer diameter, 1.9mm inner diameter, can be tightened 2mm optical shaft, single length 60mm and 100mm and 150mm.
If set on the 2mm shaft, you can make a lot of characteristic DIY works and transmission structure.
- Spring wire diameter: 0.5mm
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Spring outer diameter: 3mm
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Spring inner diameter: 1.9mm
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Available Spring length: 60mm, 100mm, 150mm
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Tension: 120N, 200N, 300N