1. Introduction
This manual provides comprehensive instructions for the safe and effective use of your Wiha System 6 (03591) Interchangeable Blade Screwdriver Set. Please read this manual thoroughly before using the product to ensure proper handling, maximize performance, and prevent potential damage or injury. Keep this manual for future reference.
2. Product Overview
The Wiha System 6 Interchangeable Blade Screwdriver Set is designed for versatility and efficiency, offering a compact solution for various fastening tasks. It features a SoftFinish telescopic handle and a selection of double-ended blades, allowing for adjustable blade length to reach deep screws.
2.1 Included Components
- 1 x SoftFinish Telescopic Screwdriver Handle (for System 6 interchangeable blades)
- 1 x Double-ended Slotted Blade: 4.0 mm - 6.0 mm x 150 mm
- 1 x Double-ended Slotted Blade: 5.5 mm - 6.5 mm x 150 mm
- 1 x Double-ended Phillips Blade: PH1 - PH2 x 150 mm
- 1 x Double-ended Pozidriv Blade: PZ1 - PZ2 x 150 mm
- 1 x Double-ended Hexagonal Ball Head Blade: 4 mm - 4 mm x 150 mm
- 1 x Double-ended Hexagonal Ball Head Blade: 5 mm - 5 mm x 150 mm
- 1 x Double-ended Hexagonal Ball Head Blade: 6 mm - 6 mm x 150 mm
- 1 x Double-ended TORX Blade: T10 - T15 x 150 mm
- 1 x Double-ended TORX Blade: T20 - T25 x 150 mm
- 1 x Double-ended TORX Blade: T30 - T40 x 150 mm
- 1 x Roll Bag for storage

Figure 1: The Wiha System 6 interchangeable blade screwdriver set. It includes a red and black SoftFinish handle and multiple double-ended blades for various screw types, all neatly organized within a black fabric roll bag.
3. Setup
3.1 Attaching and Detaching Blades
- Select Blade: Choose the appropriate double-ended blade for your task.
- Insert Blade: Insert one end of the chosen blade into the opening of the SoftFinish telescopic handle. Push firmly until you hear a "click." This indicates the click-stop ball clamp has engaged, securing the blade.
- Verify Security: Gently pull on the blade to ensure it is securely seated in the handle before use.
- Detach Blade: To remove the blade, press the lock/unlock button (if present, or pull the collar) on the handle and pull the blade out.
3.2 Adjusting Blade Length
The telescopic handle allows for variable blade length adjustment from 42 mm to 114 mm. This feature is particularly useful for reaching screws in deep or confined spaces.
- Unlock: With a blade inserted, locate the adjustment mechanism on the handle (typically a collar or button).
- Adjust: Slide the blade in or out to achieve the desired working length.
- Lock: Ensure the blade is locked in place at the desired length before applying torque. The click-stop mechanism should secure it.
4. Operating Instructions
4.1 General Usage
- Select Correct Blade: Always match the screwdriver blade type and size to the screw head to prevent damage to both the screw and the tool.
- Apply Pressure: When turning a screw, apply firm, steady downward pressure to prevent the blade from slipping out of the screw head.
- Turn Smoothly: Rotate the handle smoothly and consistently. Avoid jerky movements.
- Ergonomic Handle: The SoftFinish handle is designed for comfortable, hand and muscle-friendly work. Utilize its ergonomic shape for better grip and reduced fatigue.
4.2 Safety Precautions
- Always wear appropriate personal protective equipment, such as safety glasses, when using hand tools.
- Do not use screwdrivers as chisels, pry bars, or punches.
- Ensure the workpiece is stable and secured before working on it.
- Keep hands and fingers clear of the working area.
- Do not apply excessive force that could cause the tool to slip or break.
- Store tools safely in their roll bag when not in use to prevent loss or damage.
5. Maintenance
5.1 Cleaning
After each use, wipe down the handle and blades with a clean, dry cloth to remove dirt, grease, or debris. For stubborn grime, a mild detergent solution can be used, followed by thorough drying.
5.2 Storage
Store the screwdriver set in its original roll bag. This protects the blades from damage and keeps them organized. Store in a dry environment to prevent corrosion, especially for the Chrome Vanadium Steel blades.
5.3 Inspection
Periodically inspect blades for signs of wear, bending, or damage. Damaged blades should be replaced to ensure safe and effective operation.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Blade slips out of screw head | Incorrect blade size/type; insufficient downward pressure; worn screw head. | Ensure correct blade for screw. Apply firm, steady downward pressure. Replace worn screws. |
| Blade not securing in handle | Blade not fully inserted; debris in handle mechanism; damaged handle mechanism. | Push blade firmly until it clicks. Clean handle opening. If damaged, contact support. |
| Difficulty turning screw | Screw is overtightened or rusted; incorrect blade size; stripped screw head. | Apply penetrating oil if rusted. Ensure correct blade. Do not force; consider alternative removal methods for stripped screws. |
7. Specifications
| Brand | Wiha |
| Model Name | 281T11 |
| Part Number | 03591 |
| Material | Chrome Vanadium Steel (Blades) |
| Number of Pieces | 11 (1 handle, 10 double-ended blades) |
| Blade Length Adjustment | 42 mm - 114 mm |
| Included Blade Types | Slotted, Phillips, Pozidriv, TORX, Hexagonal Ball Head |
| Special Feature | Insulated (Note: This may refer to handle grip insulation. If VDE-rated insulation for electrical work is required, please verify product certification.) |
| Item Weight | 1.08 pounds (approx. 488 grams) |
| Product Dimensions | 0.39 x 0.39 x 0.39 inches (packaging/overall dimensions) |
8. Warranty and Support
8.1 Warranty Information
This Wiha product is covered by a Manufacturer Guarantee. For specific details regarding the terms and conditions of your warranty, please refer to the documentation included with your purchase or visit the official Wiha website.
8.2 Customer Support
Should you have any questions, require technical assistance, or need to report an issue with your Wiha System 6 Screwdriver Set, please contact Wiha customer support. You can typically find contact information on the official Wiha website: www.wiha.com