Quick Answer

A 12-piece Wera Kraftform screwdriver set fits a 6×3 Gridfinity bin (252×126 mm footprint). Photograph the set arranged in your preferred order on a sheet of A4 paper. Trace each handle into a precision-fit cavity using TracetoForge multi-tool mode. Set wall height to 25-30 mm so the handles are easy to grab. Print in PETG at 0.2 mm layer height — total print time ~6 hours, ~$3-4 in filament. The same template works for the Wera 367 (PH/PZ/SL) set, the 334/6 (slotted/Phillips), and the 932 chisel-grip series.

Wera Kraftform handles are designed to be grippy, ergonomic, and a little oversized — which makes them perfect candidates for tool-shaped Gridfinity bins, and lousy candidates for parametric bin generators. A row of identical-diameter cylindrical pockets does not respect the slight handle taper or the bicolor size markers, so screwdrivers either rattle or get stuck. Tracing the actual set from a photo solves both problems in one print.

This walkthrough covers the Kraftform 367 (Phillips/Pozidriv/slotted), the 334 (slotted and Phillips), and the 932 chisel-grip lineup. The same workflow applies to most screwdriver sets — Wiha, Klein, PB Swiss, Felo — but the dimensions below are tuned to Wera. Measure your specific set if you are working with another brand.

What You Need

A Wera Kraftform set — any series. The 12-piece sets in the 367, 334, and 932 lines all fit the same general bin layout.
A phone with camera (any modern smartphone works)
A sheet of A4 paper (210×297 mm)
A 3D printer — any FDM (Bambu, Prusa, Ender, etc.)
About $3-4 in PETG filament

Step 1: Plan the Layout

Spread the screwdrivers handle-down on the paper in the order you want them in the bin. Most users group by drive type (all Phillips together, all slotted together) and order within each group from largest to smallest. Leave 5 mm between handles — too close and the bin walls between them get fragile, too far and you waste cells.

Footprint guidance for common Wera sets:

12-piece (Kraftform 367/12 SK or 932/12): 6×3 Gridfinity bin (252×126 mm). Three rows of four handles. Standard configuration.
8-piece set: 4×3 (168×126 mm) or 6×2 (252×84 mm) depending on orientation. Two rows of four handles is typical.
6-piece set: 4×2 (168×84 mm). Two rows of three.
Bicolor or PicoFinish stubby (Wera 367 PicoFinish): 3×2 (126×84 mm) for a 7-piece or 8-piece stubby kit.

Step 2: Photograph

Take a top-down photo from about 30 cm above the paper. Even diffused lighting, no flash, camera parallel to the paper. The bright Kraftform handles trace cleanly against white paper at sensitivity 4-6 in most rooms. Detailed photo guidance, including how to handle reflective bicolor handles, lives in photo tips for a clean Gridfinity trace.

Step 3: Upload, Trace, and Tune

Drag the photo into the TracetoForge editor. The app detects the paper edges first, then traces each handle as a separate cavity. Use multi-tool mode — each handle becomes its own pocket with independent settings.

Sensitivity: 4-6 for most Kraftform handles. Raise to 6-7 if the bicolor markings confuse the auto-trace; lower to 3-4 for the matte 932 series on bright white paper.
Mode: Gridfinity Bin (not Custom Tray, unless you want a one-piece insert without the standard base).
Cavity depth: 25-30 mm. Wera Kraftform handles are roughly 22 mm at the widest grip; 25 mm leaves enough wall around the handle without burying it.
Tolerance: 0.5 mm. Kraftform handles have a soft-grip surface that grips tighter than its measured diameter suggests. 0.5 mm leaves them snug but liftable.

Step 4: Add Finger Notches

Click each cavity in the 3D preview to add a finger notch. Without it, handles sit flush in the bin and you cannot grab them — you have to dig with a fingernail. Notch depth: 8-10 mm, positioned at the accessible end (typically the front of the bin where you reach in).

For the 12-piece layout, place notches on alternating sides (front/back) so adjacent handles do not share a single notch wall. Stiffer print, easier grip.

Step 5: Export and Print

Export STL or 3MF. Slice in your preferred slicer. Recommended settings:

Material: PETG. Holds up to garage and vehicle-toolbox temperatures.
Layer height: 0.2 mm.
Infill: 15% gyroid.
Walls: 3 perimeters. Adequate stiffness around the handle cavities.
Supports: none. The cavities are open-top.
Print time: ~6 hours for a 6×3 bin on a Bambu P1S; longer on slower printers.
Filament: ~$3-4 in PETG.

Step 6: Field Test

Place the printed bin in a Gridfinity baseplate. Drop each screwdriver into its cavity. The handle should slide in with light pressure and lift out with a fingertip via the notch.

Failure modes:

Too tight: handle binds, will not seat fully. Sand the cavity walls with 220-grit, or reprint with +0.2 mm tolerance.
Too loose: handle rattles when the bin is tilted. Reprint with -0.2 mm tolerance.
Wrong handle in wrong cavity: the bin is custom — every cavity is shaped for a specific handle. Label them, or just memorize the layout.

Series-Specific Notes

Wera Kraftform 367 (Plus 367)

Standard Kraftform handle profile, bicolor sizing markers. The auto-trace sometimes catches the bicolor boundary as an interior edge — fix manually by dragging vertices to the outer handle silhouette only. Recommended sensitivity: 5.

Wera Kraftform 334 / 334-6 / 334-7

Slotted and Phillips bits in the standard Kraftform handle. Identical layout to 367. Sensitivity 4-6.

Wera Kraftform 932 (Chisel Grip)

Squared-off chisel-grip handle, designed to be hammered. The squared profile traces differently from the rounded Kraftform — the cavity ends up roughly hexagonal in cross-section. Use sensitivity 5-6 and depth 30 mm to accommodate the slightly longer handle.

Wera Kraftform Compact / Stubby (168i, 18i)

Stubby drivers are 30-40% shorter than full Kraftform. Use a 4×2 bin layout with 25 mm cavity depth. The shorter handles fit four-up in a 4×2 with room to spare.

Wera Joker (Ratcheting Combination Wrenches)

Not screwdrivers, but worth noting since users often store these adjacent: the Joker line has a ratcheting head, so trace at the head's widest cross-section. See the{' '} wrench set Gridfinity bin guide.

Buy Pre-Made If You Do Not Print

TracetoForge sells precision-fit Wera-compatible PETG inserts on{' '} Amazon{' '} and{' '} Etsy. Standard 12-piece Kraftform 367 and 932 sets are stocked; for less common sets or custom orderings, the photo-trace path is the only way to get an exact fit.

FAQ

Will this fit non-Wera screwdrivers?

Maybe. Wera Kraftform handles are slightly oversized compared to Wiha, Klein, or PB Swiss. A bin traced from a Kraftform set will be too tight for most other brands. The fix: trace YOUR set, not someone else's. The whole point of photo-to-print is that one bin fits one set.

Can I make a vertical (tip-down) version?

Possible but not recommended. Tip-down storage exposes the cutting edge, and screwdriver shafts are 80-150 mm long — that means a 100 mm-deep bin, which prints slowly and wastes filament. Handle-down is the right call for screwdrivers.

Why not just buy the Wera Tool-Check or Tool-Rebel tray?

Wera's own factory trays are foam, not plastic. They wear out, do not survive heat, and fit one specific set without modularity. A printed Gridfinity bin survives indefinitely, fits in any Gridfinity baseplate (drawer, benchtop, Packout drawer per the{' '} Gridfinity in Packout drawers guide), and costs less.

What about Wera bit storage (ZyklOp socket bits)?

Bit holders are small enough that 1×1 Gridfinity cells per bit work without tracing — a generic Gridfinity small-parts bin from Printables holds 30-40 bits in upright orientation. Tracing only helps when the cavity needs to match an irregular shape, which a hex bit does not.

Wera Screwdriver Gridfinity Bin: Photo-to-Print Walkthrough