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3/8-Inch Socket Organizers and Holders in STL

This collection gathers 3D printing files built around the 3/8-inch size: socket organizers, drawer inserts, wall holders, thread adapters and a few small puzzle objects. It is useful when you want to sort a tool set or replace a fitting and need a starting point for an STL search. The models come from several platforms, so the same idea may appear in different shapes and scales. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

このコレクションの本文は英語で書かれています。検索自体はどの言語でも使えます。

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このコレクションは、Polyzonが対応サイトの検索結果をもとに作成しています。重複やプレビューのないモデルは除外し、関連性の低いものは後ろに回し、それ以外は検索結果の順に並べています。モデルの権利は各作者にあります。利用条件は各モデルのページでご確認ください。

選定基準：Polyzon編集部 · 本文の更新日：2026年10月12日

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«3/8-Inch Socket Organizers and Holders in STL»

Socket storage is the largest group here. Some files are single rails or bars that hold one drive size, others are modular systems with magnetic or clip-in seats that can be combined into a larger tray. Gridfinity-style bins follow a fixed grid, so they stack and fit standard drawer layouts, while plain holders are usually shaped around one set and its extension bar.

Thread adapters and fittings form a second group. These are small parts that change one thread or hose size into another, and they are often printed in one piece without assembly. Puzzle boxes and similar desk objects appear as well; they differ mainly in how many parts they contain and whether the mechanism is printed in place or assembled afterwards.

When choosing a file, open the author's page and read the listed dimensions, drive size, number of parts and any notes about supports or orientation. Check the material and settings the author used, and look at photos of real prints to judge wall thickness and fit. To widen the search, try terms such as socket rail, tool tray, drawer insert, thread reducer, hose barb or organizer insert, and add the drive size you actually own.

FAQ

よくある質問

What does 3/8 refer to in these models?
In most cases it is the drive size of a socket or ratchet, or a thread and hose diameter. The same number can mean different things, so read the description before printing.
Do socket holders need supports?
Many are designed to print flat, but deeper pockets and overhangs may need them. The author's page usually states the orientation and whether supports were used.
How do I pick a holder for my own set?
Measure the socket diameter and count the pieces you want to store, then compare that with the dimensions and slot count given on the model page.
Can I resize these files?
Scaling changes wall thickness and the fit of clips or threads, so it works better for simple trays than for parts that must match an exact thread or drive size.
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