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Notes on making a section for a Bock size 5 nib housing

Phil - 14 Mar 2016 23:00:00Other articles...

We frequently get requests for advice regarding the correct proceedure for making fountain pen sections for Bock nib housings, particularly regarding size 5 nibs, which appear to give more trouble than the size 6 ones.

Standard practice when establishing the correct drill size for thread taps is to subtract the pitch from the diameter. In the case of a Bock size 5 housing, that would work out as 6.4 – 0.6 = 5.8However, the very bottom of the housing has a tiny non-threaded area which has a diameter greater than the drill size. Therefore we recommend that you use a 6mm drill, which will allow the housing to be inserted easily, without compromising the integrity of the section thread.
Ensure that the non-threaded part of your section is marginally longer than the non- threaded part of the housing. This will allow the housing to locate on the tiny rim under the nib, and not locate by running out of thread, which could cause it to seize up.
Run your taps through the thread as far as possible, right to the end of the cutters, to open up the minor diameter of you section thread as much as possible. Once you have cut your thread, run a tap in as far as possible by hand from the opposite end, which will also serve to open the minor and to clear any swarf or other detritus.

Bock size 5 fountain pen nibs

Bock size 5 housing. Get in touch with us to receive a full size drawingfull drawing — Bock size 5 housing. Get in touch with us to receive a full size drawing

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Our market leading Mistral pen kits are the only pen kits avialable worldwide with truly matching fountain pen, rollerball, ballpoint and pencil. Each type of kit is available to buy individually, so that you can create a matched set of pens (or pen and pencil) in any combination you choose.

Why is that a thing? Well, if you offer a rollerball to someone who normally uses a fountain pen, they're likely to turn up their nose. Fountain pen people simply don't write with rollerballs, and rollerball people don't write with fountain pens. And yet, if you look around at pen kits, that all you can usually get - a fountain pen matched with a rollerball. What pen owners want is a matching fountain pen and a pencil, or maybe a rollerball and a pencil, or perhaps a fountain pen and a ballpoint. You get the picture. They'll use them both, but they're extremely unlikely to use them both if the pens are a fountain pen and a rollerball.

Mistral pen kits were designed by us, from the bottom up, to offer matching pens and pencils in any combination. They're not just modified as an afterthought, they were designed right from the start to look the same.

You can mix and match with Mistral pen kits. They're high quality kits, not just cheap offerings with cheap plating and cheap mechanisms. And they do match. And that's the point.

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Notes on making a section for a Bock size 5 nib housing

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About The Authors

Pen turning

Fountain pen nibs

Fountain pen ink

Pen blanks

Our market leading Mistral pen kits are the only pen kits avialable worldwide with truly matching fountain pen, rollerball, ballpoint and pencil. Each type of kit is available to buy individually, so that you can create a matched set of pens (or pen and pencil) in any combination you choose.