Slim rollerball?

[qquake]

What is the slimmest (smallest OD) rollerball kit?

 

[Edgar]

William Wood-Write has a Budget Snap Cap RB that uses an 8mm tube. Bushing diameters are 10.5mm.

That's the slimmest one that I know of, but there might be others of similar size.

 

[qquake]

Is it the Presimo?

Presimo rollerball pen kit chrome and satin chrome

Single tube Presmio rollerball pen kit. Uses drill 10 mm, pen mill 10 mm, bushing PKPT100BU and mandrel A/7 mm (not included). Rollerball refill included.

www.penblanks.ca

 

[qquake]

Or is it this one? It looks like an Editor/Tiny Giant.

Snap Cap rollerball pen kit chrome

Snap Cap rollerball pen kit for a 3/4" square × 5" (19 × 19 × 127 mm) blank. Includes Schmidt refill; Pentel EnerGel compatible. Shop in Canada.

www.penblanks.ca

 

[Edgar]

Or is it this one? It looks like an Editor/Tiny Giant.

Snap Cap rollerball pen kit chrome

Snap Cap rollerball pen kit for a 3/4" square × 5" (19 × 19 × 127 mm) blank. Includes Schmidt refill; Pentel EnerGel compatible. Shop in Canada.

www.penblanks.ca

That's the one - it looks like an RB version of the Editor/Tiny Giant BP. Both use the same bushings.