Normalized tube record

0.394 in OD tube

A measured tube group centered on 0.394-inch outside diameter. It is separated from nominal drill-size classes until a verified equivalence is recorded.

0.394 in OD

Observed outside diameters0.394" (10.0 mm)

Known kit lengths5

Linked kits / projects5

Replacement listings0

Before substituting

Match OD, wall thickness, and length.

The class name helps discovery; it does not override the kit maker's current tube specification. A close drill size does not prove that two brass tubes are interchangeable.

Kit cross-reference

Known barrel lengths

Eagle click pen kitsXiamen Rizheng · RZ-BPCL371Lower / bodybarrel position0.394" (10.0 mm)tube OD2.409" (61.2 mm)tube lengthNot recordedminimum blank cutOpen kit →Filigree footprint pen kitsXiamen Rizheng · RZ-RP315Lower / bodybarrel position0.394" (10.0 mm)tube OD2.480" (63.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Instyle rollerball pen kitsXiamen Rizheng · RZ-RP199Lower / bodybarrel position0.394" (10.0 mm)tube OD2.283" (58.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Panache pen kitsXiamen Rizheng · RZ-RP58Lower / bodybarrel position0.394" (10.0 mm)tube OD2.913" (74.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Tactical twist pen kits outdoorXiamen Rizheng · RZ-BP292Lower / bodybarrel position0.394" (10.0 mm)tube OD2.051" (52.1 mm)tube lengthNot recordedminimum blank cutOpen kit →