For 450PRO ,use 3mm outside the wire horizontal axis
4mm horizontal axis to solve the problem easily cut associated 3mm diameter stainless materials.
Outside diameter: 2.98MM
1.450 lengthened outside the wire horizontal axis × 3 root
2.M2.5 slip nut × 2
3.1.5MM abscissa washer × 2
The a 4.3mm integrated horizontal axis O-ring × 2
5. Converted 3 * 8 * 3MM bearing four replaceable the first wife paddle folder within 4 * 8 * 3 bearing.
Self-locking nut and tighten it, otherwise cause thread damage may lead shot paddle! Do not use if the nut slip.
Self-locking nuts generally 10 times!