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Klein Tools 70543 Compact Folding Hex Key Set (25-Key, 3-Piece)
The Klein Tools 70543 Compact Folding Hex Key Set is a professional-grade, 3-piece toolkit featuring SAE, Metric, and TORX folding hex keys. Engineered with high-leverage, heat-treated alloy steel blades, this set delivers dependable corrosion resistance and precise structural integrity for industrial technicians and field installers.
Each folding tool is built into a pocket-sized, durable reinforced nylon handle designed for quick key access. The integrated #2 Phillips fastener on the outer body allows operators to easily adjust key tension to preferred resistance levels. Each blade opens independently up to 270° to accommodate limited-access workspaces, while the square-cut hex ends ensure a full-depth, slip-free fit within the socket.
Key Features
- Durable Construction: Heat-treated alloy steel blades with enhanced corrosion resistance.
- Optimized Engagement: Square-cut hex ends provide a secure, full-depth fit to prevent fastener slippage and stripping.
- Adjustable Tension: Built-in #2 Phillips fastener allows easy key tension customization.
- Flexible Access: High-leverage keys open independently up to 270°.
- Quick Identification: Tools are distinctively color-coded for fast selection (Red for SAE, Blue for Metric, Green for TORX).
Included Key Sizes
| Standard SAE (Red Handle) | 1/4", 7/32", 3/16", 5/32", 9/64", 1/8", 7/64", 3/32", 5/64" |
|---|---|
| Metric (Blue Handle) | 8mm, 6mm, 5mm, 4mm, 3mm, 2mm, 1.5mm |
| TORX (Green Handle) | T40, T30, T27, T25, T20, T15, T10, T9 |
Physical Specifications
- Handle Length: 4.6" (11.6 cm)
- Key Lengths: 2.0" to 2.5" (5.1 cm to 6.4 cm)
- Handle Material: Reinforced Nylon
Warning: These tools are NOT insulated. Do not use to pry or chisel, and do not extend the handle length to increase leverage.
Frequently Asked Questions
Q: Can the tension on the individual keys be adjusted?
A: Yes, each tool features a #2 Phillips fastener on the outer body that allows you to effortlessly tighten or loosen the key tension as needed.
Q: Are these folding hex keys insulated for electrical work?
A: No, these keys are strictly uninsulated and must not be used on live electrical circuits.
Q: How far do the keys open from the handle?
A: Each individual key can open independently up to 270 degrees, providing versatility in tight spaces.