TWSBI Diamond 580 Iris Replacement Nib (Nib unit only)
Replacement nib for the TWSBI 580 Iris fountain pen. This is a genuine replacement nib, made in Germany from high quality stainless steel, and decorated with the distinctive Iris rainbow trim. This item is supplied as a nib and feed unit on a holder. It excludes the Iris coloured metal collar and clear plastic grip shown in the image.
The 580 nib assembly is easy to fit and can be done while the pen is inked:
- Unscrew the original nib and grip section from the barrel
- Slide off the original plastic grip and metal collar from the old nib
- Slide the original collar and grip onto the new nib unit
- Screw the nib and grip section back onto the barrel (hand-tight)
- Check the nib is sitting square relative to the feed
Size Fine is the most popular for everyday writing, and the 1.1mm Stub for some subtle flair.
Features:
- Genuine TWSBI 580 Iris replacement nib assembly
- Stainless steel with iridescent detail
- Smooth, consistent ink flow
- Tine alignment checked by our team prior to despatch
Nib Options:
Available in EF, F, M, B, 1.1mm Stub.
Compatibility:
TWSBI 580, 580AL and 580ALR fountain pens.
Can also be made to fit the TWSBI Aurora, Draco, Kai and Obsidian by removing the original nib from the nib unit and sliding the new nib in.
Roughly #5.5 size, but not a standard interchangeable nib unit for other brands of nibs/pens.