Wera Toolcheck ULTIMATE (Zyklop Speed 1/4"/RA 838)

The Wera Tool-Check Ultimate is a fully redesigned, 3D-printing–optimized upgrade of the original Wera Tool-Check Plus, created for users who want maximum functionality, modularity, and customization in a compact tool system.

This model replaces the standard mini ratchet with a full-size Wera Zyklop Speed 1/4" ratchet, significantly improving ergonomics, torque handling, and usability, while maintaining the iconic Tool-Check layout.

Update 01.01.2026

The design has been updated to improve modular compatibility. See this in the extra Print-Profile “Two Side Hinge”.
The left side of the Tool-Check Ultimate is now fully accessible for all modules, as it uses the negative slide-in connector geometry. This allows modules to be inserted from either side and enables the use of the Wera modular hinge on the left side as well.

With this update, the Tool-Check Ultimate can now be folded on both sides, matching the flexibility of the Wera modular system while retaining full compatibility with custom and OEM modules.

Key Features

• Designed for 3D Printing
  • Optimized geometry for FDM printing
  • Snap-fit and slide-in modules tuned for common print tolerances
  • No proprietary hardware required
• Zyklop Speed Integration
  • Replaces the original mini ratchet with a Wera Zyklop Speed 1/4"
  • Dedicated holder for the Wera 8784 A1 Zyklop adapter, allowing direct use of standard Tool-Check bits with the Zyklop ratchet
• Full Version – Screwdriver Handle Support
  • Accommodates the Wera 838 screwdriver handle
  • Secure snap-fit holder keeps the handle firmly in place while remaining easy to remove
• Wera Tool-Check Modular Compatible
  • Fully compatible with the Wera Tool-Check Modular system
  • Slide in and swap modules to configure the toolset to your needs
  • Designed to work seamlessly with existing Wera modular components
• Custom Expansion Modules
  • a custom-designed module for a HOTO tape measure
  • Demonstrates the flexibility of the modular system for non-Wera accessories

Why “Ultimate”?

This design turns the Tool-Check into a true all-in-one EDC and workshop solution, combining:

• Bit storage
• Socket storage
• Full-size ratcheting performance
• Screwdriver functionality
• Modular expandability

All while staying compact, portable, and fully 3D printable.

Notes

• The Top part is compatible with the original bottom part where the bits sit. I recommend using the original part here for the best performance.
• This is a third-party, custom-designed model intended for use with genuine Wera tools.