Hexagon Key Set 1.5-10 mm, Long with Ball End, 9-Piece, Phosphate Finish, DIN 911

Working in tight spaces or at awkward angles with standard hex keys can quickly turn a simple job into a frustrating struggle. This 9-piece hexagon key set solves that problem by combining extra-long L-shaped keys with a ball end on the long arm, allowing you to reach deep-set screws and work at angles up to 25° without losing engagement. Crafted from high-alloy special steel with a phosphate finish, these keys deliver high torque transmission and wear resistance, making them a reliable choice for both professional mechanics and serious DIYers.

Who is it for

This set is ideal for technicians, mechanics, and advanced home users who frequently work with hexagon socket screws in machinery, automotive applications, or furniture assembly. If you need to access recessed or obscured fasteners, the long shafts and ball-end tips give you the reach and flexibility that standard keys can't provide.

Main features

• 9 metric sizes: 1.5, 2, 2.5, 3, 4, 5, 6, 8, and 10 mm
• Long L-shaped keys for deep reach and extra leverage
• Ball end on the long arm allows angled access up to 25°
• High-alloy special steel with phosphate finish for durability and corrosion resistance
• Conforms to DIN 911 for consistent sizing and quality
• Supplied in a compact plastic holder for organized storage

Specifications

• Product type: Hexagon key set
• Number of pieces: 9
• Key profile: Hexagon
• Tip type (short arm): Hexagon
• Tip type (long arm): Ball end
• Key shape: L-shaped
• Size range: 1.5 mm – 10 mm
• Individual sizes: 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10 mm
• Key length series: Long
• Material: High-alloy special steel
• Surface finish: Phosphated
• Standard compliance: DIN 911
• Storage/holder: Plastic holder
• Application: Fastening and loosening hexagon socket screws
• Ball end feature: Allows working at angles up to 25°
• Torque transmission: High
• Durability: Wear-resistant
• Country of origin: Germany

Tips

For maximum torque, use the short arm to break loose or final-tighten fasteners, and the ball end for quick spinning in confined areas. Keep the keys clean and lightly oiled to maintain the phosphate finish and prevent corrosion. Always match the key size exactly to the screw socket to avoid rounding.