Klein Tools BLS12-KLEIN Hex Key Set Sae 12 Piece

Product Description

The KLEIN TOOLS BLS12-KLEIN is a 12-piece SAE L-style ball-end hex key wrench set built for trade professionals who need reliable hand tools on the job. Each key is heat-treated and coated in black phosphate, delivering high strength and corrosion resistance through repeated use. The ball-end design allows for angled fastener engagement, which is useful in tight or hard-to-reach spaces. The set is packaged in a flexible folding case that keeps all 12 sizes organized and immediately accessible. Licensed electricians, HVAC technicians, plumbers, and general contractors will find this set well-suited to everyday service and installation work.

This set is designed for general trade applications where SAE hex fasteners are common, including equipment panels, motor mounts, valve assemblies, and electrical enclosures. The folding case is engineered to interlock with compatible metric cases, allowing technicians to consolidate both SAE and metric sets into a single compact storage unit. The long-arm design provides extended reach and increased torque leverage compared to standard-length hex keys, making it practical for both bench work and field service.

Key Features

• 12-piece SAE set covers the most commonly used hex key sizes in a single case
• Ball-end tip allows fastener engagement at angles, useful in confined spaces
• Heat-treated steel construction for high strength and durability
• Black phosphate coating provides corrosion resistance
• Flexible folding case keeps keys organized and protected
• Case interlocks with compatible metric hex key cases for consolidated storage

Compatibility

Designed as a standard SAE L-style ball-end hex key set suitable for hex socket fasteners found across HVAC, electrical, plumbing, and general mechanical service applications.

Installation Notes

Hex key sets are used by a wide range of trades including electricians, HVAC technicians, and plumbers. Always select the correctly sized key for the fastener to avoid rounding the socket drive. Do not apply excessive force to the ball-end tip on the short arm, as ball-end engagement is intended for alignment and moderate torque only. Use the straight end for final tightening.