Klein Tools BLS22 22-Piece Long Ball-End Hex Key Set – SAE & Metric, Heat-Treated

Premium, professional-grade hex keys for demanding tasks

For more than a century and a half, Klein Tools has built a reputation for dependable hand tools. The BLS22 22-piece long ball-end hex key set brings that heritage into a versatile kit designed to handle a wide range of fasteners. With long, durable keys and a design that favors access in tight spaces, this set supports efficient work across automotive, machinery, electronics, and home projects. The pair of materials and finishes chosen by Klein Tools helps the tools hold up to daily use while keeping corrosion at bay, so you can focus on the job rather than maintenance.

What makes the BLS22 stand out

• 22-piece hex key set in SAE and metric sizes, covering both traditional and metric fasteners
• L-Style keys that extend reach and leverage for turning stubborn fasteners
• Ball-end tips allow access at angles up to 25 degrees, helping you work in cramped areas
• Heat-treated steel provides long-term durability for regular use
• Black phosphate coating offers corrosion resistance to keep the tools performing over time
• Internal locking mechanism helps prevent loss of keys when moving between tasks

Included sizes at a glance

• SAE: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8
• Metric: 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 10 mm

Real-world use, with less hassle

Whether you’re servicing a vehicle, assembling machinery, or performing home repairs, the BLS22 is designed to slot into busy workflows. The long reach helps you access fasteners in recessed areas, while the ball-end tips reduce re-positioning time in awkward angles. A robust finish and durable metallurgy mean you can rely on these keys for repeated use, and the built-in storage keeps the set organized so you spend less time searching and more time working.

Durability and organization you can trust

• Heat-treated, tempered steel balances strength with a precise fit on fasteners
• Black phosphate coating adds rust resistance for longer life in varied environments
• Internal locking keeps all keys securely in place when not in use

Designed with professionals in mind and backed by Klein Tools’ long-running commitment to quality, the BLS22 offers a practical mix of range, reach, and resilience. It’s a compelling option for anyone who needs a dependable hex key set that can handle modern fasteners without sacrificing comfort or precision. While results will vary with application, users often find the combination of long keys, ball-end access, and secure storage to be a meaningful upgrade to their toolkit.