The Proto B327477 is an 11-piece tether-ready T-handle hex key set designed for professional use in industrial and MRO environments. The tether-ready (-TT) design allows keys to be safely secured to a lanyard or tether system, making it ideal for work at height or drop-prevention applications.
T-handle construction provides increased torque and control compared to standard L-shaped hex keys, improving productivity on fastening and loosening tasks. This set is a reliable choice for maintenance technicians, assembly workers, and tradespeople who demand quality and safety compliance on the job.