A modular storage case designed for straight-handle electric screwdrivers and their accessories. The main compartment fits straight-handle screwdrivers with a diameter of **30–42mm** and a length of **≤200mm**. The bit area uses swappable trays, so you can pick and print only the modules you need to match your own bit count and workflow.

 Key Features
 

 Made for straight-handle screwdrivers: Designed around common straight-handle proportions, with multiple optional stop-clips you can print to get a snug fit.

Modular trays: Choose different tray capacities/combos to avoid wasted space or running out of slots.

Supports short & long bits: Tray options for **25mm short bits** and **50mm long bits**.

Expandable: Swap in other trays (e.g., drill bits, extension shafts) to match your tool set.

Great for multiple scenarios: Works well on the desk, in a drawer, or for carry.

Compatibility

 Electric screwdriver: diameter 30–42mm, length ≤200mm (straight-handle type)

 Bit capacity (example options):

  - Up to 42 × 25mm short bits

  - Or up to 21 × 50mm long bits

 You can also choose other module combinations and print the tray set that fits your needs

Metric Bit Spec (Hex Shank)

- Shank size: **6.35mm hex** (commonly marked as 1/4" Hex). The bit slots are designed for this standard.

- Bit length: supports **25mm** and **50mm** bits (with the corresponding tray versions).

Print Configuration Plates (File Set Breakdown)

Select the tray combination(s) you need and print only what matches your bit count.

- Plate 1: Storage case body

- Plate 2: Tray Combo A: screwdriver tray (Ø36–39mm) + bit tray (4 long bits + 24 short bits, tray length 160mm) + long-shaft tray (160mm) + small square box (50mm)

- Plate 3: Tray Combo B: screwdriver tray (Ø36–39mm) + bit tray (6 long bits + 30 short bits, tray length 210mm) + long-shaft tray (210mm)

- Plate 4: Stop-clips for different screwdriver diameters (choose the clip that matches your screwdriver diameter)

- Plate 5: Long-bit box (21 slots), tray length 210mm

- Plate 6: Short-bit box (42 slots), tray length 210mm

- Plate 7: Long-bit box (15 slots), tray length 160mm

- Plate 8: Short-bit box (30 slots), tray length 160mm

 Target fit is based on the design dimensions; different brands may vary due to rubber grips, buttons, or body shape. Printing one key part to test-fit first is recommended.

 If this case doesn’t fit your screwdriver size or bit count, feel free to leave your screwdriver dimensions and bit count in the comments for future improvements and new modules.