Hex Key Set BRADAS DIY-HKH42-SH/B — 9-piece S2 steel multicolour internal hex keys

The BRADAS 9-piece hex key set DIY-HKH42-SH/B is a compact collection of internal hex (Allen) keys made from S2 steel and finished in multiple colours for fast visual size identification. The set covers common metric hex sizes and is intended for tightening and loosening hex fasteners during furniture assembly, DIY repairs and general household maintenance. The single-piece holder keeps all keys organised for storage in a toolbox or for use around the home.

Advantages

The S2 steel construction provides higher hardness and improved wear resistance compared with standard carbon tool steels, which supports repeated use in demanding fastening tasks. The multicolour finish allows quick identification of sizes without reading stamped markings, speeding up work in busy environments. The compact single-piece holder secures the keys and reduces the risk of losing individual pieces, while the range of sizes makes the set versatile for common household and workshop applications.

Suitable for

• Furniture assembly and disassembly (flat-pack furniture)
• General DIY repairs around the house
• Maintaining bicycles, small equipment and appliances
• Use in workshop tool kits and portable tool bags

When it may not be suitable

This compact 9-piece set is designed for common metric hex fasteners; it may not include very large or very small specialty sizes required for some industrial equipment. For heavy industrial applications that demand torque values beyond hand tools, a torque-controlled wrench or professional-grade tool set is preferable. The multicolour finish is intended for visual convenience but does not change mechanical properties.

Key specifications

• Material: S2 tool steel for increased hardness and durability
• Pieces: 9 internal hex keys in a single holder
• Finish: multicolour coating for quick size recognition
• Design: compact single-piece holder for organised storage
• Application: manual tightening and loosening of hex fasteners

How to use

Select the hex key with the matching size to the fastener and insert the short or long arm into the screw head depending on the clearance and leverage needed. Apply steady manual force, keeping the key aligned with the fastener to avoid rounding the hex. Use the longer arm for increased leverage when loosening tighter fasteners and the shorter arm for accessing screws in confined spaces. After use, return the keys to the colour-coded holder to maintain organisation and prevent loss.

What to consider before purchase

• Verify that the set contains the hex sizes you commonly use for furniture and household items
• Consider whether hand tools meet your torque requirements or if a torque wrench is needed for specific tasks
• Check that a compact holder and multicolour finish match your preference for storage and size identification

Usage recommendations

Keep keys clean and dry to prevent corrosion, periodically inspect tips for wear, and avoid using keys on damaged or rounded fasteners; use appropriate extractor tools if necessary.