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The BONDHUS 16137 is a 13-piece SAE L-shape hex key set designed for fastener work across a wide range of sizes. The set covers sizes from 0.05 inches to 3/8 inches, giving technicians and tradespeople a full spread of commonly needed drive sizes in a single kit. Each key is formed from vanadium molybdenum steel and finished with a bright guard coating that resists corrosion and wear. The L-shape profile provides a short-arm grip for high-torque applications and a long-arm option for reaching recessed fasteners. This set is suited for HVAC, plumbing, electrical, and mechanical service work where hex fasteners are standard.
This set is appropriate for both residential and light commercial service environments. The range of included sizes makes it well suited for equipment panels, motor mounts, valve assemblies, and general mechanical service tasks. The long-arm design gives additional reach when working inside equipment cabinets or around tight clearances, reducing the need to reposition between fasteners. Tradespeople who regularly service equipment with hex-head fasteners will find the full size range covers most field scenarios without requiring additional tools.
Designed for use with SAE hex fasteners ranging from 0.05 inches to 3/8 inches, suitable for general mechanical, HVAC, plumbing, and electrical service applications requiring L-shape hex keys.
Hex key sets require no installation but should be inspected before each use for signs of rounding or wear at the drive tip. Always select the correctly sized key for the fastener to avoid stripping. Power down and de-energize any equipment before servicing fasteners on electrical or HVAC components. Store keys in the provided holder or case to protect the bright guard finish and maintain tip geometry.
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