Parker G2 Refill vs. Schmidt Euro Rollerball Refill
Comparing 2 standards across 13 specifications. 13 key differences identified.
The Parker-Style G2 Refill (standardized under ISO 12757-2 Doc G2) is one of the most widely adopted ballpoint and gel pen refill standards. Measuring 98.1 mm in length and 5.8 mm in body diameter with a stepped metal barrel and grooved plastic crown cog, it is used by hundreds of luxury pen brands and custom machined EDC pens.
The Euro-Format Rollerball Refill (standardized under DIN 16554 and defined by the Schmidt Safety Ceramic 888/5888 format) is the industry benchmark for luxury capped liquid-ink rollerball pens. Measuring 110.6 mm in length and 6.2 mm in barrel diameter with a ceramic ball tip, it is utilized across hundreds of fine writing brands.
Specification Comparison Table
13 Parameters| Parameter / Spec | ||
|---|---|---|
|
Overall Length
|
98.1 ± 0.3 mm (3.86 in) | 110.6 ± 0.3 mm (4.35 in) |
|
Main Body Diameter
|
5.8 ± 0.1 mm (0.228 in) | — |
|
Stepped Tip Diameter
|
2.5 mm extending 18.0 mm from barrel shoulder | — |
|
ISO Standard Code
|
ISO 12757-2 Type G2 (Documentary permanence proof) | — |
|
Crown Cam Geometry
|
Molded nylon cog crown with 4 radial guide splines for push-button advance mechanisms | — |
|
Available Ink Formulations
|
Oil-based ballpoint (Parker QuinkFlow, Schmidt P900), hybrid low-viscosity (Uni Jetstream SXR-600), gel ink (Schneider Gelion+, Itoya) | — |
|
Pen Brand Compatibility
|
Parker, Pelikan, Faber-Castell, Rotring (600/800), Retro 51 Tornado, Tactile Turn, Karas Kustoms | — |
|
Barrel Diameter
|
— | 6.2 ± 0.1 mm (0.244 in) |
|
Tip Collar Diameter
|
— | 2.5 mm extending 19.5 mm from shoulder |
|
Ball Material
|
— | Sintered ceramic ruby ball (0.5 mm Fine, 0.7 mm Medium, 1.0 mm Broad) |
|
Safety Ceramic Venting
|
— | Schmidt extended cap-off time technology prevents tip drying for up to 1 year uncapped |
|
Refill Barrel Variants
|
— | Schmidt 888 (plastic tube) / Schmidt 5888 (metal casing) |
|
Brand Compatibility
|
— | Pelikan, Faber-Castell, Visconti, Kaweco, Retro 51, ACME Studio, OMAS |