Hex key set Bondhus BO16599, metric 1.5–10 mm, short L-keys, 9 pieces

Bondhus BO16599 is a 9-piece metric hex key set comprising short L-shaped keys in sizes 1.5, 2, 2.5, 3, 4, 5, 6, 8 and 10 mm. The compact short-leg design allows access in confined spaces while the long leg provides leverage for torque where needed. Constructed from hardened steel with precision-machined tips, the set is intended for accurate fastening, adjustment and maintenance across mechanical, electronic and bicycle applications.

Advantages

The short L-keys combine compact reach with strong torque transfer thanks to a hardened steel construction and precision-cut hex profiles that reduce rounding of fasteners. The set covers the most commonly used metric sizes from 1.5 mm to 10 mm in a small nine-piece kit that is convenient to store and carry. The short-leg format is especially useful for working in tight assemblies, panels and equipment housings while still allowing controlled turning from the longer arm.

Suitable for

• Assembly and disassembly of mechanical components in small spaces
• Electronics repair and component adjustment where short reach is required
• Bicycle maintenance including brake and derailleur adjustments
• General workshop and hobby jobs requiring metric hex keys

Key specifications

• Set contents: 9 metric short L-keys — 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10 mm
• Shape: Short L-shaped hex keys (short leg for access, long leg for leverage)
• Material: Hardened steel with precision-machined hex tips
• Finish: Corrosion-resistant coating for improved durability
• Storage: Compact holder for organized storage and transport

How to use

Select the hex key that matches the fastener size and insert the short end into the screw head for work in tight spaces, or use the long arm to gain additional leverage where clearance permits. Apply steady, even force and avoid using excessive torque on worn or rounded fasteners. After use, return the keys to the compact holder to keep sizes organized and protect the tips.

Usage recommendations

Use the correctly sized key to prevent fastener damage, inspect tips regularly for wear, and store the set in its holder away from moisture to preserve the finish. For stuck or rusted fasteners, consider penetrating lubricant and careful incremental torque rather than sudden force.