Modular Gridfinity Socket Holder

A modular Gridfinity-compatible socket storage system designed for flexibility, expandability, and clean organization.

Supported Socket Types

• 1/4"
• 3/8"
• 1/2"
• 3/4"
• Dedicated variant for Milwaukee Insider sockets

Rail Options

Single Rails (fixed length):

• 1x2
• 1x3
• 1x4
• 1x5
• 1x6
• 1x7

Extendable Rails (connectable):

• 1x2.5
• 1x3.5
• 1x4.5
• 1x5.5

Extendable rails can be joined together to create longer continuous rails. For a secure fit, applying a small amount of super glue in the connector holes is recommended after final assembly.

Socket Holder Variants

• 1/2" & 3/8" sockets
  • Two design options available:
    • Screwable cap version
    • Sliding cap version
• 1/4" sockets
  • Sliding cap version only
  • Screwable cap is not used due to the small socket size
• 3/4" sockets
  • Screwable cap version only

Hardware Requirements

Steel Balls:

• 6 mm → for 1/2" and 3/4"
• 5 mm → for 3/8"
• 3.5 mm → for 1/4"

Steel balls can be found, for example, here (make sure to select the correct variant): https://www.aliexpress.com/item/1005003724584723.html

Springs:

• 3/4" sockets:
  • Uses same spring specifications as 1/2" sockets
  • OD: 5 mm
  • Length: ~10 mm
  • Wire thickness: 0.5–0.6 mm
  • Example (remember to choose correct variant): https://www.aliexpress.com/item/1005005402716572.html
• 1/2" sockets:
  • OD: 5 mm
  • Length: ~10 mm
  • Wire thickness: 0.5–0.6 mm
  • Example (remember to choose correct variant): https://www.aliexpress.com/item/1005005402716572.html
• 3/8" sockets:
  • OD: 4 mm
  • Length: ~7–10 mm
  • Wire thickness: 0.4–0.5 mm
  • Example (remember to choose correct variant): https://www.aliexpress.com/item/1005005402501364.html
• 1/4" sockets:
  • OD: 3 mm
  • Length: ~5 mm
  • Wire thickness: 0.4–0.5 mm
  • Example (remember to choose correct variant): https://www.aliexpress.com/item/1005005402501364.html

Labels & Customization

• Use “Customize” to create labels with a width that suits your needs.
• A separate profile with example labels is provided (note: organization is not very structured, but serves as a reference)
• A dedicated “blank labels” print profile is included:
  • Label widths from 10 mm to 40 mm
  • 0.5 mm intervals for precise sizing