Understanding Tube Sizes for Pen Kits at Stadium Pen Blanks

At Stadium Pen Blanks, we offer pre-tubed label cast blanks designed to fit a variety of pen kits. To help you choose the right blanks for your pen turning projects, we’ve compiled a detailed guide to the tube sizes compatible with popular pen kits. Below, we’ve organized the kits by tube size and listed them alphabetically for easy reference. 

Jr. Series Pen Kits (12.5mm & 10.5mm Tubes)

Our Jr. Series pre-tubed blanks are compatible with both 12.5mm and 10.5mm tubes, fitting a wide range of pen kits. The following kits are compatible with these tube sizes. Note that this is not an exhaustive list, but it covers many popular options.

Sierra Clone Pen Kits (27/64” Tubes)

Our Sierra clone pre-tubed blanks are designed for kits that use 27/64” tubes. These blanks are compatible with the following kits, listed alphabetically.

PSI Baseball Pen Kits (3/8" Tubes)

For the Penn State Industries Baseball Pen Kit, our pre-tubed blanks are designed to fit 3/8" tubes. The compatible kit is:

Full Size Gentleman's Series Pen Kits (37/64"& 15/32" Tubes)

Our Full Size Gentleman's Series pre-tubed blanks are compatible with both 37/64" & 15/32" tubes, fitting a wide range of pen kits. The following kits are compatible with these tube sizes. Note that this is not an exhaustive list, but it covers many popular options.

NASA Pen Kits (10mm Tubes)

The WoodTurningz NASA kits, specifically the Shuttle Rollerball or Fountain Pen Kit, use 10mm tubes. These are distinct from the Sierra clone 27/64” tubes and require our 10mm pre-tubed blanks.

PSI Bolt Action Pen Kits (3/8" Tubes)

Our 3/8" pre-tubed blanks are compatible with the following Penn State Industries Bolt Action Pen Kits, listed alphabetically. Note: Our 3/8" Bolt Action tubes are not compatible with other bolt action styles (e.g., Mini 30 Caliber, Magnum, Vertex, Bolt Action Tec-Pen, Mini Bolt Action Keychain, or Detachable Bolt Action Keychain) due to differences in length or tube size.

PSI Nautical Pen Kit (3/8" Tubes)

Our 3/8" pre-tubed blanks are compatible with the following Penn State Industries Nautical Pen Kit.

PSI Civil War Pen Kit (3/8" Tubes)

Our 3/8" pre-tubed blanks are compatible with the following Penn State Industries Civil War Pen Kit.

We hope this guide helps you select the perfect pre-tubed blanks for your pen kits. At Stadium Pen Blanks, we’re committed to providing high-quality blanks that fit your favorite kits. If you have any questions or need assistance, feel free to reach out!