Gridfinity 1/4-Inch Drive Socket Holders - 50 Positions, 4-13 mm

Keep your 1/4-inch drive sockets grouped by size in three matching Gridfinity holders. Short square pegs locate each socket through its drive opening, leaving the working end visible and easy to pick up. Engraved size labels help keep duplicates together.

The complete set provides 50 positions across three 2 x 2 Gridfinity holders:

- Small: 4, 4.5, 5, 5.5 and 6 mm sockets; five of each, 25 positions.

- Medium: 7, 8, 9 and 10 mm sockets; four of each, 16 positions.

- Large: 11, 12 and 13 mm sockets; three of each, 9 positions.

Every storage holder measures 83.5 x 83.5 x 13 mm without sockets. Print files 01, 02 and 03 for the full set, or repeat a holder to add capacity.

DRIVE SIZE AND FIT

These holders are for 1/4-inch square-drive sockets. The labels describe metric working sizes; they do not describe different drive sizes. Sockets stand with the square drive opening downward over the peg.

The supplied tray pegs are 6.15 mm across flats and 6 mm high, with clipped corners and a tapered entry. They do not have locking bumps.

If a different peg width is needed, change the geometry rather than scaling the entire tray: scaling also changes the Gridfinity footprint and the spacing between sockets.

CHECK THE SOCKET BODIES

The layout reserves these maximum outside-diameter envelopes, with at least 1 mm between the reserved bodies:

- 4, 4.5, 5, 5.5 and 6 mm: 13 mm outside diameter.

- 7 mm: 13.5 mm.

- 8 mm: 14.5 mm.

- 9 mm: 15.5 mm.

- 10 mm: 16 mm.

- 11 mm: 17.5 mm.

- 12 mm: 18.5 mm.

- 13 mm: 20 mm.

These are design allowances, not universal dimensions for every brand. Measure the widest part of your sockets, including shoulders, knurling and sleeves. Wider sockets can need more spacing even when their drive opening fits the peg.

PRINTING AND USE

Print at 100% scale with the Gridfinity feet down. The models are intended to print without supports. A reasonable starting point is a 0.4 mm nozzle, 0.20 mm layers, four walls and 15-20% infill in PLA or PETG; use the same settings for the fit coupon and trays. These suggested settings are not a tested printer profile.

When fully seated, a socket's loaded height above the holder underside is 7 mm plus its length. Include any baseplate elevation and drawer clearance. Shallow drive openings may prevent full seating and increase the height.

These are open storage trays without transport retention. The shallow perimeter rim is not a stacking interface.