Name: BOCK 250 Steel Semi-flex
Rating: 5.00 (3 reviews)

${product_title} {variant_title} – fountain pen nib | FPnibs$

BOCK 250 Steel Semi-flex

€42,35

${product_title} {variant_title} – fountain pen nib | FPnibs$

${product_title} {variant_title} – fountain pen nib | FPnibs$
${product_title} {variant_title} – fountain pen nib | FPnibs$
${product_title} {variant_title} – fountain pen nib | FPnibs$

BOCK 250 Steel Semi-flex

€42,35

In stock

Bock Stainless Steel nib, unit with feeder and threaded housing.

An ebonite feeder is optional: it has 3 ink canals to maximaze ink flow.

Size 6, that means that the feeder is 6 millimeters in diameter. Thread housing M7.9x0.6.

Brushed finish.

Modified by FPnibs to add flexibilty: up to 1 millimeter tines opening.

It is medium soft, that means you need to apply a bit of pressure to open the tines.

Select modified feeder to increase ink flow.

Works well with cartridges and converters, but bigger ink reservoir would be even better.

You must learn the limits of this nibs in order to avoid a permanent tines spread due to too much pressure. In this case we would not replace or repair the nib for free.

All our nibs are adjusted and tested to perform at their best if used properly.

Extra care must be taken when screwing and unscrewing the nib unit into your pen, because it may misalign the tines.

5 stars: 3 (100%)
4 stars: 0 (0%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 0 (0%)

The Bock 250 Steel Semi-flex is sitting in a Kaweco Supra. Writing with it gets extremely satisfying, especially with the Ebonite-feeder. With runnier inks it gets a lot (!) on the paper, so I'd say letting it sit in a system that's feeded with standard cartridges or converters isn't ideal, it screams for pens with big reservoirs like some piston filler fountain pens are. The nib itself writes a little bit on the broader side of fine due to it's flex, so it has more similarity to a finer 'M' than a normal 'F'. The flex really is nice, I love how supporting and smooth the writing gets. The feeding is superb, no skipping issues at all. In a nutshell: Big recommendation for this one! Will surely get another nibs by time!