Manual screwdriver Wera 05005122001 Single T-handle screwdriver 99 mm width 130 mm length 49 mm height

The Wera 05005122001 is a VDE-insulated T-handle screwdriver with a 3/8" square head mounting and an integrated ball lock for attachment tools. Its fine-toothed ratchet mechanism inside the handle provides fast, powerful and precise operation while recesses in the rotating sleeve allow controlled finger-applied resistance to engage the ratchet even on low-resistance screws. The T-handle geometry fills the hand, with softly rounded notches for secure grip and efficient torque transfer. The tool is individually tested to IEC 60900 at 10,000 V and certified for safe work at up to 1,000 V. The coated handle protects sensitive surfaces from damage and it is compatible with 3/8" VDE bit sockets and Wera Zyklop VDE series sockets (8740, 8760, 8767, 8790).

Advantages

The insulated T-handle design combines high torque transmission with ergonomic comfort, enabling strong tightening and loosening moments while reducing hand fatigue. The fine-toothed ratchet mechanism ensures precise incremental rotation, and the rotating sleeve with finger recesses allows operation where only slight resistance can be applied. Individual IEC 60900 testing guarantees electrical safety for work up to 1,000 V. The coated handle reduces the risk of scratching or damaging workpiece surfaces.

Suitable for

• Electrical installation and maintenance tasks on live or de-energized circuits (up to 1,000 V) where insulated tools are required
• Applications requiring high torque such as tightening and loosening large fasteners
• Work with 3/8" VDE bit sockets and Wera Zyklop VDE 8740, 8760, 8767, 8790 series sockets
• Precision tasks needing controlled, incremental ratchet action

Key specifications

• Manufacturer: Wera
• Model / MPN: 05005122001
• Type: VDE-insulated T-handle screwdriver
• Number of tools: 1
• Handle colour: Red, Yellow
• Mounting: 3/8" square head with integrated ball lock
• Ratchet: Fine-toothed ratchet mechanism in handle
• Electrical safety: Tested to IEC 60900 at 10,000 V; rated for use up to 1,000 V
• Compatibility: 3/8" VDE bit sockets and Wera Zyklop VDE series 8740, 8760, 8767, 8790
• Dimensions (approx.): width 99 mm, length 130 mm, height 49 mm

How to use

Attach a compatible 3/8" bit socket or Zyklop VDE series socket to the square head until the integrated ball lock secures it. Hold the T-handle so the palm fills the grip and the fingers rest in the rounded notches; apply torque by turning the handle for tightening or loosening. For small incremental turns, use the fine-toothed ratchet action; place fingers on the rotating sleeve recesses to introduce slight resistance and engage the ratchet when needed. Use standard safe working practices for insulated tools when working on electrical circuits.

Recommendations

Use the Wera 05005122001 only within its certified electrical rating (up to 1,000 V) and inspect the insulation before each use. Select matching 3/8" VDE sockets and avoid striking the tool or exposing it to temperatures or chemicals that could damage the insulation.