This is a 4.0mm extra-long metric hex key designed for precise tightening and loosening of hexagonal fasteners. It is made from hardened and tempered chrome vanadium steel and features a chemically blacked protective finish with chamfered ends for easy engagement in tight or hard-to-reach spaces.
Features
- 4.0mm size
- Extra-long arm for difficult access
- Chrome vanadium steel, hardened and tempered
- Chemically blacked protective finish
- Chamfered ends for easy insertion and engagement
Usage
Use this hex key to tighten or loosen hexagonal fasteners in various DIY projects and home repairs. It is suitable for working in tight or hard-to-reach spaces due to its extended length. No installation is required; simply select the correct size and use with compatible fasteners.
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