Normalized tube record

0.307 in OD tube

A measured tube group centered on 0.307-inch outside diameter. It is separated from nominal drill-size classes until a verified equivalence is recorded.

0.307 in OD

Observed outside diameters0.307" (7.8 mm)

Known kit lengths42

Linked kits / projects45

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

Acme click pen kitsXiamen Rizheng · RZ-BPCL138Upper / capbarrel position0.307" (7.8 mm)tube OD3.480" (88.4 mm)tube lengthNot recordedminimum blank cutOpen kit →Acme click pen kitsXiamen Rizheng · RZ-BPCL138Lower / bodybarrel position0.307" (7.8 mm)tube OD0.476" (12.1 mm)tube lengthNot recordedminimum blank cutOpen kit →Billiard cue pen kitsXiamen Rizheng · RZ-RP503Lower / bodybarrel position0.307" (7.8 mm)tube OD2.992" (76.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Bullet Click Pen KitXiamen Rizheng · RZ-BPCL59Upper / capbarrel position0.307" (7.8 mm)tube OD2.008" (51.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Bullet Click Pen KitXiamen Rizheng · RZ-BPCL59Lower / bodybarrel position0.307" (7.8 mm)tube OD1.693" (43.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Classic twist pen kitsXiamen Rizheng · RZ-BP19Upper / capbarrel position0.307" (7.8 mm)tube OD2.028" (51.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Classic twist pen kitsXiamen Rizheng · RZ-BP19Lower / bodybarrel position0.307" (7.8 mm)tube OD2.028" (51.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Classic twist pencil kitsXiamen Rizheng · RZ-PCL21Upper / capbarrel position0.307" (7.8 mm)tube OD2.047" (52.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Classic twist pencil kitsXiamen Rizheng · RZ-PCL21Lower / bodybarrel position0.307" (7.8 mm)tube OD2.047" (52.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Contoured rubber click pen kitsXiamen Rizheng · RZ-BPCL148Upper / capbarrel position0.307" (7.8 mm)tube OD2.717" (69.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Contoured rubber click pen kitsXiamen Rizheng · RZ-BPCL148Lower / bodybarrel position0.307" (7.8 mm)tube OD1.693" (43.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Crystal twist pen kits brightXiamen Rizheng · RZ-BPTS136Lower / bodybarrel position0.307" (7.8 mm)tube ODNot recordedtube lengthNot recordedminimum blank cutOpen kit →Dawnguard click pen kitsXiamen Rizheng · RZ-BPCL101Lower / bodybarrel position0.307" (7.8 mm)tube OD2.657" (67.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Designer twist pencil kitsXiamen Rizheng · RZ-PCL15Upper / capbarrel position0.307" (7.8 mm)tube OD2.031" (51.6 mm)tube lengthNot recordedminimum blank cutOpen kit →Designer twist pencil kitsXiamen Rizheng · RZ-PCL15Lower / bodybarrel position0.307" (7.8 mm)tube OD2.374" (60.3 mm)tube lengthNot recordedminimum blank cutOpen kit →Editor pen kitsXiamen Rizheng · RZ-BP181Lower / bodybarrel position0.307" (7.8 mm)tube OD2.579" (65.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Elegant American ball pen kitsXiamen Rizheng · RZ-BP72Upper / capbarrel position0.307" (7.8 mm)tube OD1.929" (49.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Elegant American ball pen kitsXiamen Rizheng · RZ-BP72Lower / bodybarrel position0.307" (7.8 mm)tube OD2.110" (53.6 mm)tube lengthNot recordedminimum blank cutOpen kit →Exquisite aromatherapy necklaceXiamen Rizheng · RZ-PK356Upper / capbarrel position0.307" (7.8 mm)tube OD1.063" (27.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Exquisite aromatherapy pen kitsXiamen Rizheng · RZ-BP436Upper / capbarrel position0.307" (7.8 mm)tube OD2.008" (51.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Golf tee pencil kitsXiamen Rizheng · RZ-PCL402Upper / capbarrel position0.307" (7.8 mm)tube OD3.031" (77.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Gospel twist pen kitsXiamen Rizheng · RZ-BP247Upper / capbarrel position0.307" (7.8 mm)tube OD1.752" (44.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Gospel twist pen kitsXiamen Rizheng · RZ-BP247Lower / bodybarrel position0.307" (7.8 mm)tube OD2.087" (53.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Hand tool pen kitsXiamen Rizheng · RZ-BP386Upper / capbarrel position0.307" (7.8 mm)tube OD3.071" (78.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Handy pen kitsXiamen Rizheng · RZ-BP259Upper / capbarrel position0.307" (7.8 mm)tube OD3.913" (99.4 mm)tube lengthNot recordedminimum blank cutOpen kit →Handy pencil kitsXiamen Rizheng · RZ-PCL259Upper / capbarrel position0.307" (7.8 mm)tube OD3.913" (99.4 mm)tube lengthNot recordedminimum blank cutOpen kit →Highlighter pen kitsXiamen Rizheng · RZ-BP112Upper / capbarrel position0.307" (7.8 mm)tube ODNot recordedtube lengthNot recordedminimum blank cutOpen kit →Highlighter pen kitsXiamen Rizheng · RZ-BP112Lower / bodybarrel position0.307" (7.8 mm)tube ODNot recordedtube lengthNot recordedminimum blank cutOpen kit →Hourglass twist pen kitsXiamen Rizheng · RZ-BP303Lower / bodybarrel position0.307" (7.8 mm)tube OD2.283" (58.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Ivy twist ball pen kitsXiamen Rizheng · RZ-BP218Upper / capbarrel position0.307" (7.8 mm)tube OD0.984" (25.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Kaleidoscope twist pen kitsXiamen Rizheng · RZ-BP261Lower / bodybarrel position0.307" (7.8 mm)tube OD2.323" (59.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Letter opener pen kitsXiamen Rizheng · RZ-BP392Lower / bodybarrel position0.307" (7.8 mm)tube OD2.244" (57.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Melody pen kitsXiamen Rizheng · RZ-BP242Upper / capbarrel position0.307" (7.8 mm)tube OD1.764" (44.8 mm)tube lengthNot recordedminimum blank cutOpen kit →Melody pen kitsXiamen Rizheng · RZ-BP242Lower / bodybarrel position0.307" (7.8 mm)tube OD1.339" (34.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Mini sketch pencil kitsXiamen Rizheng · RZ-PCL151Upper / capbarrel position0.307" (7.8 mm)tube OD3.248" (82.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Needle ThrreaderXiamen Rizheng · RZ-PK477Upper / capbarrel position0.307" (7.8 mm)tube OD3.110" (79.0 mm)tube lengthNot recordedminimum blank cutOpen kit →New mini sketch pencil kitsXiamen Rizheng · RZ-PCL468Upper / capbarrel position0.307" (7.8 mm)tube OD3.858" (98.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Pastor twist pen kitsXiamen Rizheng · RZ-BP172Lower / bodybarrel position0.307" (7.8 mm)tube OD1.142" (29.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Perfume pen kitsXiamen Rizheng · RZ-PK65Upper / capbarrel position0.307" (7.8 mm)tube OD0.980" (24.9 mm)tube lengthNot recordedminimum blank cutOpen kit →Perfume stylus pen kitsXiamen Rizheng · RZ-PKTS322Upper / capbarrel position0.307" (7.8 mm)tube OD1.303" (33.1 mm)tube lengthNot recordedminimum blank cutOpen kit →Perfume stylus pen kitsXiamen Rizheng · RZ-PKTS322Lower / bodybarrel position0.307" (7.8 mm)tube OD2.717" (69.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Pocket ball pen kitsXiamen Rizheng · RZ-BP456Upper / capbarrel position0.307" (7.8 mm)tube OD3.346" (85.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Power Click Pen KitsXiamen Rizheng · RZ-BPCL26Upper / capbarrel position0.307" (7.8 mm)tube OD1.870" (47.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Power Click Pen KitsXiamen Rizheng · RZ-BPCL26Lower / bodybarrel position0.307" (7.8 mm)tube OD1.870" (47.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Premium designer pen kitsXiamen Rizheng · RZ-BP16Upper / capbarrel position0.307" (7.8 mm)tube OD2.031" (51.6 mm)tube lengthNot recordedminimum blank cutOpen kit →Premium designer pen kitsXiamen Rizheng · RZ-BP16Lower / bodybarrel position0.307" (7.8 mm)tube OD2.374" (60.3 mm)tube lengthNot recordedminimum blank cutOpen kit →Rifle bolt tec-pen kitsXiamen Rizheng · RZ-BP143Upper / capbarrel position0.307" (7.8 mm)tube OD2.504" (63.6 mm)tube lengthNot recordedminimum blank cutOpen kit →Seam Ripper KitsXiamen Rizheng · RZ-PK91Upper / capbarrel position0.307" (7.8 mm)tube OD3.110" (79.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Seam Ripper KitsXiamen Rizheng · RZ-PK91NUpper / capbarrel position0.307" (7.8 mm)tube OD3.110" (79.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Seam Ripper Kits - CrystalXiamen Rizheng · RZ-PKTS539Lower / bodybarrel position0.307" (7.8 mm)tube OD2.008" (51.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Seam Ripper Kits - StilettoXiamen Rizheng · RZ-PK330Upper / capbarrel position0.307" (7.8 mm)tube OD3.740" (95.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Seam Ripper Kits necklaceXiamen Rizheng · RZ-PK269Upper / capbarrel position0.307" (7.8 mm)tube OD2.441" (62.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Simplicity touch stylus pen kitsXiamen Rizheng · RZ-RPTS207Lower / bodybarrel position0.307" (7.8 mm)tube OD3.543" (90.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Slimline pro gel click pen kitsXiamen Rizheng · RZ-BPCL34Upper / capbarrel position0.307" (7.8 mm)tube OD2.008" (51.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Slimline pro gel click pen kitsXiamen Rizheng · RZ-BPCL34Lower / bodybarrel position0.307" (7.8 mm)tube OD2.008" (51.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Slimline pro gel click pencil kitsXiamen Rizheng · RZ-PCL35Upper / capbarrel position0.307" (7.8 mm)tube OD2.008" (51.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Slimline pro gel click pencil kitsXiamen Rizheng · RZ-PCL35Lower / bodybarrel position0.307" (7.8 mm)tube OD2.008" (51.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Sphere stylus click pen kitsXiamen Rizheng · RZ-BPTCL188Upper / capbarrel position0.307" (7.8 mm)tube OD1.969" (50.0 mm)tube lengthNot recordedminimum blank cutOpen kit →Sphere stylus click pen kitsXiamen Rizheng · RZ-BPTCL188Lower / bodybarrel position0.307" (7.8 mm)tube OD1.791" (45.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Stylish necklace pen kitsXiamen Rizheng · RZ-BP201Lower / bodybarrel position0.307" (7.8 mm)tube OD2.051" (52.1 mm)tube lengthNot recordedminimum blank cutOpen kit →Tuttle twist pen kitsXiamen Rizheng · RZ-BP415Upper / capbarrel position0.307" (7.8 mm)tube OD2.028" (51.5 mm)tube lengthNot recordedminimum blank cutOpen kit →Tuttle twist pen kitsXiamen Rizheng · RZ-BP415Lower / bodybarrel position0.307" (7.8 mm)tube OD1.713" (43.5 mm)tube lengthNot recordedminimum blank cutOpen kit →