# Nozzle Guide: Size & Material Matters
The nozzle is the business end of your printer. Changing it can drastically change your print quality and speed.
## 1. Nozzle Sizes
* **0.4mm (Standard):** The perfect balance of speed and detail. Use this for 90% of prints.
* **0.6mm (Speed):** Prints 50% faster but loses fine detail. Great for functional parts.
* **0.2mm (Detail):** For miniatures. Very slow, very high detail.
## 2. Nozzle Materials
* **Brass (Standard):** Excellent heat conductivity. Cheap. **Use for PLA, PETG, ABS.**
* **Hardened Steel:** Wear-resistant. **REQUIRED for Abrasive Materials** (Glow-in-the-dark, Carbon Fiber, Wood).
* *Note:* Steel conducts heat poorly. You may need to increase print temp by 5-10°C.
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