The Pensmith
Pen Repair Parts & Tools

This is the working heart of our Myford ML 7 lathe which we use to make various pen parts in both precious and semi-precious metals and for various hard rubber and acrylic components.  In addition, it is used extensively in conjunction with an English Cowells Vertical Mill to make many pen repair tools either for our own use, or for sale. The lathe was made in 1973 by Myford of Nottingham (UK).  It was exported to Australia in that year and remained in its packing crate, unassembled and covered in grease until we purchased it in 2016.  We assembled the lathe in 2017 and found that on assembly, it exceeded factory test specifications and tolerances.  It is a superbly accurate machine and a rarity to find after using an older Myford ML 10 machine and a Chinese machine, both of which have now been sold.  In 2018 we were lucky enough to find an (Imperial) Myford screw cutting gearbox in the UK, which we have now fitted to the lathe.  Nothing about our lathe is "high-tech" but it is an absolute joy to use on a virtual daily basis.

Many more pen repair tools can be found at our other site -

The only successfull way of extracting seal capsules from Sheaffer Vac Fills after of course, appropriate heating and soaking of the capsule end of the barrel  Made to grip the barrel and with an extractor threaded to the blind cap specifications on the capsule.
Price $140 AUD + GST each.

Holds nib and feed for removal or setting of nibs.
Price $110 AUD + GST

Made in all three sizes of piston washer together with 2.0 mm internal diameter cutter.  Made in 7.15 mm, 8.35 mm and 9.95 mm external diameters.  Available as a set of four cutters or one external diameter only with internal diameter cutter.
Price $80 AUD + GST each for one external and the internal cutter.  Extra external sizes are $45 AUD each + GST.

For removal of 146 and 149 nibs.
Price $60 AUD + GST each.

For removal of 146 and 149 pistons.
Price $60 AUD + GST each.

Very useful for inserting replacement O-rings or seals in the seal capsule and re-sealing the capsule to avoid glue staining or marking the barrel.  The rod retracts fully inside the insert tube to avoid spreading glue where it is not required.
Price $90 AUD + GST each.

The best of a number of ideas from others and, our own experience.  Extracts the clutch from the cap lip section of the clutch, avoiding the damage caused by attempting to extract the clutch from its base.
Price $160 AUD + GST each.

Repair and refurbishment of Sheaffer Vac Fill seal capsules is one of the most difficult repairs that can be undertaken.  To simplify the task, we've manufactured new Vac Fill seal capsules pre-fitted with 'O' Ring.  Simply heat and knock out the old seal capsule and glue in a new one.  Illustrated below is the new capsule (with sealing washer removed) showing the 'O' Ring fitted.  The capsules are correctly threaded for all Sheaffer blind caps.
Price $25 AUD + GST each.

These cutters are made to order and are made in two different sets, one for cork seals and the other for piston washers.  Piston washers can range in size in size from 8.0 mm to 10.3 mm (according to model).  Most prefer the piston washer size of 8.3 mm external diameter which suits most Onoto 1000, 2000 and 3000 series pens.  A choice of five other sizes is offered in substitution for the 8.3 mm piston washer for other models.  

The seal cutters are perfectly concentric - the smaller sizes being a snug fit inside the tubes of the larger sizes.The cutters are made from mild steel, sharpened and hardened.  Importantly,  no matter how often the cutters are re-sharpened, the diameter of the cut seal will never change.  

We do also manufacture seal cutters to order for many other pens.
$70 AUD + GST for cork cutter set comprising 2.0 mm and 6.0 mm diameter cutters.
$70 AUD + GST for piston washer cutter set comprising 2.5 mm and 8.3 mm diameter cutters.
Extra piston washer cutters (in addition to the 8.3 mm or your nominated size), are available at $45 AUD + GST.

Plunger rods for Onotos wear out, break, bubble, burst and bend.  The answer - replacement rods made of brass. These brass rods feature a cupped plunger backing integrally turned into the bell shaped, adjustable lower stopper. The rods suit all six different types of Onoto rod used in nine different Onoto models.  They can be easily cut to length. The rods are supplied with plunger backing, copper pins and lock nuts.

Original threads on Onoto plunger rods use left hand 5BA threads.


1. Rods using the original 5BA left hand threads which suit original thread configurations.  These require no further work or mechanical input save for insertion of the original or replacement copper pins in both the plunger knob and the shut-off mechanism; or

2. A version which does not use original thread configurations and instead, uses 3.0 mm metric right hand threads and a combination of lock nuts and pins to ensure that once adjusted and installed, the rod (and its fittings) will never move. Unless you have the mechanical ability to re-thread the plunger knob (from LH 5BA thread to 3.0 mm metric right hand thread), we strongly recommend that you leave the fitting of these rods to ourselves.  Ideally, our system of fixing the position of Onoto rods requires the drilling of two 1.0 mm holes to fit copper pins in the plunger backing and the plunger knob.  The use of pins ensures that the restoration can be dismantled if servicing is required at a later date. Otherwise, for those who prefer the non-purist method, the plunger backing and knob can be glued into place but obviously, this is irreversible and will (in our humble view), ruin the integrity of the pen.  This version of rod suits pens where the knob or other parts (which depend on the existence of good, left hand threads), are damaged.


$30 AUD + GST  (either version)


These tools are not individually priced but rather, are made to order according to a user's preference.  These are made to size and order and price varies accordingly . Please email us for a quotation.

Barrel/cap clamp:

A very useful tool to clamp a barrel or cap including to safely hold in a lathe for repair/restoration work.  Fitted with protective rubber sleeve and tightened using 4 hex head screws.

Rod clamp:

Used primarily for unscrewing Onoto plunger rods and capable of other uses with some imagination.

Nib/grooved block:

Made from silver (or mild) steel and featuring a range of milled and polished grooves.  Useful for nib straightening with ball bearings or burnisher.

Pelikan collar clamp:

Threaded collars on Pelikan nibs often stay in the section when nibs are removed.  The smallest of proprietary inner cap pullers are too large to grip the collars in the section.  This expanding clamp is small enough to remove any wayward Pelikan collar which is stuck in a section.


Copyright 2017 - The Pensmith