Hex key set Bondhus long ball-end 1.5–10 mm, 9-piece, gold-coated

Bondhus long ball-end hex key set includes nine hex keys in sizes from 1.5 mm to 10 mm, designed for access in tight or angled spaces. Each key features a long arm and a ball-end tip that permits turning fasteners at an angle, and a gold coating that improves corrosion resistance and visibility. The compact set is intended for repair, assembly and maintenance tasks across bicycles, machinery and electronics, suitable for both workshop and field use.

Advantages

The long ball-end geometry allows engagement with fasteners at off-axis angles up to approximately 25–30 degrees, increasing reach and flexibility in confined areas. Gold-coated finish enhances resistance to corrosion while making tools easier to locate in toolboxes or low-light conditions. The set covers a broad range of common metric sizes (1.5–10 mm), reducing the need to carry multiple individual keys. Durable steel construction provides reliable torque transfer and consistent fit to hex fasteners.

Suitable for

• Repair and maintenance of bicycles where recessed or angled hex bolts are present
• Assembly and servicing of machinery and equipment with metric hex fasteners
• Electronics maintenance and small-appliance repair requiring precise, angled access
• Workshop and mobile field tool kits for technicians and mechanics

Key specifications

• Set composition: 9 hex keys, long arm design
• Sizes included: 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm
• Tip style: ball-end on long arm for angled access
• Finish: gold-coated surface for improved corrosion resistance and visibility
• Material: hardened steel for torque transmission and wear resistance
• Storage: compact holder/rail for organized transport and quick size selection

How to use

Select the hex key size that fits the fastener snugly to avoid rounding. Insert the long arm into the fastener and, when necessary, use the ball-end tip to engage the fastener at an angle for access behind obstructions. Apply steady torque using the long arm for increased reach; switch to the short arm (if applicable) or use the key as a T-handle substitute when higher torque is needed. After use, return keys to the holder to maintain organization and protect tips from damage.

Usage recommendations

Use the correct size to prevent fastener and tool wear; avoid excessive torque on small keys to reduce risk of bending. Keep the gold-coated surfaces clean and dry to preserve corrosion resistance, and store the set in its holder in a dry toolbox for longevity.