Variation in Parker-Style Refills?

[professorgerm]

Hello!

 

I recently purchased an unusual machined pen from Russia that is supposed to take Parker refills, and indeed shipped with a completely-unbranded refill that looks almost exactly like a standard Parker-style. However, upon close comparison and trying a Schmidt 9000, a Schneider Slider 755, and a Monteverde P11- none of those fit, and it appears the unbranded one that shipped is just a hair thinner (I'm waiting on a digital caliper to find just how fine a hair).

 

Has anyone run into a similar issue, and happen to know possible sources of thinner Parker-style refills?

[halffriedchicken]

I'm not sure of any thinner Parker style refills but you may want to check the newer refills that fit some of the pens made in China like Hongdian that use the 3.4 mm bore diameter ink cartridges. I believe Parker cartridges are 3.4 mm also but these cartridges that fit the Hongdian and others pens have a thinner outer diameter than Parker cartridges so that might work for your pen. Another option I would check out would be a LAMY cartridge because you can fit a LAMY cartridge in a Parker fountain pen so it's worth checking if you have a LAMY cartridge.

[grainweevil]

I believe the OP is looking for a ballpoint/gel refill. Did a double-take myself until I saw which forum it was in!

 

Unfortunately I have no ideas, and in fact am in a similar bind with an unbranded rollerball that looks like its a "Euro-format" but just isn't quite. Frustrating.

[Misfit]

Try reading this post that covers Parker, G2 and other. 
 

https://www.wellappointeddesk.com/2014/06/epic-refill-guide-rollerball-gel-and-ballpoints/#comments

[Estycollector]

My favorite refills for the Parkers are the Ohto .5mm. 

[NoUserFree]

UNI SXR-600, made in Japan.