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Old 05-11-2018, 11:35 PM   #1 (permalink)
Join Date: Apr 2017
Location: Gilberts, Illinois
Posts: 26
Photos: 0


So, I have several of these older roller ball kits that required stepped drills. they appear to be PKMONT-RPT (screw on cap roller ball) kits. I have the instructions from psi. (

However, the part circled in the picture is not anywhere to be found in that instruction. Every kit has one in it. Anyone have any idea what it is for? Is it a tool? Is it an assembly part? Is it a pen rest? I'm lost.
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File Type: pdf PKMONT-FP2_RP2.pdf (142.3 KB, 31 views)
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Old 05-12-2018, 12:08 AM   #2 (permalink)
its_virgil's Avatar
Join Date: Jan 2004
Location: Wichita Falls, TX, USA.
Posts: 7,008
Photos: 73


It slides inside the plastic retainer and holds the cap in place. The roller ball tip or fountain pen tip fits inside to hold the cap in place. Rather difficult to explain. I hope you get what I'm trying to say.
Don Ward aka its_virgil
Wichita Falls, Texas (pen stuff I've written)

Last edited by its_virgil; 05-12-2018 at 12:18 AM.
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Old 05-12-2018, 12:42 AM   #3 (permalink)
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Join Date: Feb 2011
Location: Coquitlam, BC, Canada
Photos: 75


It looks like a leaf spring (4 leaves) that goes inside a cylinder, like the cap of the pen.

When you slide the cap on the leaves compress and hold the cap in place.

You don't separate the leaves. . You "roll" the whole thing into a "cylindrical" form

Kids rule the world !!! .... eventually if not already !

Last edited by magpens; 05-12-2018 at 12:46 AM.
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Old 05-12-2018, 09:00 AM   #4 (permalink)
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Join Date: Jan 2009
Location: Glendale,Arizona
Posts: 1,693
Photos: 4


Thats the same piece they use with the Seam Ripper kits now
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Old 05-12-2018, 10:41 AM   #5 (permalink)
Join Date: Oct 2017
Location: Livermore, Ca 94550
Posts: 402
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Found old kit instruction sheet with drawing of ware to install spring clip. See attached.
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File Type: pdf scan0018.pdf (172.5 KB, 53 views)
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Old 05-12-2018, 03:23 PM   #6 (permalink)
Join Date: Oct 2012
Location: Akron, OH
Posts: 1,220
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So it is just to centralize the nib section? It looks like the plastic insert acts like a snap-cap pen and that is what keeps the 2 parts together when closed.

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