These are 8mm (0.31″) copper sleeves that will slide perfectly onto 8mm (0.31″) rods. Perfect for your 3D printer prototyping needs!
Specification
- Inner diameter: 8mm (0.31″)
- Outer diameter: 11mm (0.43″)
- Length: 28mm (1.1″)
Shipping List
- 8mm (0.31″) Copper sleeves x2


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