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Wiha 28589 59-Piece Master Torque Driver Set
The Wiha 28589 Master Torque Driver Set provides network technicians, electricians, and industrial installers with a comprehensive solution for precision fastening. This 59-piece tool kit ensures critical connections are tightened to exact specifications, preventing equipment damage and ensuring reliable performance in demanding environments.
At the core of the set are three ergonomic, multi-component TorqueVario-S adjustable handles, covering a broad torque range from 15 inch-ounces up to 50 inch-pounds. The kit comes complete with a torque setting tool, essential adapters, and a diverse selection of 39 precision bits and 14 sockets, all securely organized in a durable storage case.
Key Features & Included Components
- Adjustable TorqueVario-S Handles: Three ergonomic handles covering distinct ranges (15-80 in-oz, 5-10 in-lbs, and 10-50 in-lbs).
- Comprehensive Bit Selection (39 Pieces): Includes Slotted (4.5mm, 5.5mm, 6.5mm), Phillips (#0, #1, #2), TORX (T5 to T30), Hex SAE (0.05" to 1/4"), Hex Metric (1.5mm to 6mm), PoziDriv (#1, #2), and Square (#1, #2, #3).
- Socket Set (14 Pieces): Wide range of standard SAE (5/32" to 3/8") and Metric (4mm to 8mm) sockets.
- Adapters & Tools: Includes a 1/4" bit holder, a 1/4" hex to 1/4" square adapter, and a torque setting tool for quick adjustments.
- Storage & Traceability: Housed in a custom storage case and includes a factory Certificate of Calibration for immediate professional use.
Technical Specifications
| Manufacturer | Wiha |
|---|---|
| Model | 28589 |
| Total Piece Count | 59 Pieces |
| Torque Ranges | 15–80 in-oz, 5–10 in-lbs, 10–50 in-lbs |
| Included Bits | Slotted, Phillips, TORX, Hex (SAE/Metric), PoziDriv, Square |
| Included Sockets | SAE (5/32" to 3/8"), Metric (4mm to 8mm) |
| Compliance | Certificate of Calibration included |
Frequently Asked Questions
Q: Are the torque handles pre-calibrated out of the box?
A: Yes, the Wiha 28589 set includes a Certificate of Calibration, indicating that the adjustable TorqueVario-S handles have been factory calibrated.
Q: What sizes of TORX bits are included in this set?
A: The set includes ten TORX bits: T5, T6, T7, T8, T9, T10, T15, T20, T25, and T30.
Q: Can I use standard 1/4" drive sockets with this driver set?
A: Yes, the kit includes a 1/4" hex to 1/4" square adapter, allowing you to use the provided sockets as well as other standard 1/4" drive square sockets.

