The Greenlee T-Handle Hex Key Set (Model 0254-40) is built for electricians and tradespeople who demand precision, comfort, and durability on the job site. This 10-piece set covers the most common SAE hex sizes — from 3/32 in all the way up to 3/8 in — so you have the right key for panel work, device installation, equipment assembly, and maintenance tasks without hunting for the right size. Heat-treated and tempered steel construction exceeds ASME/ANSI specifications, while ergonomic moulded T-handle grips deliver maximum torque with reduced hand fatigue during extended use. The ball-end design allows up to 30° of misalignment for working in tight or awkward angles, and the square-cut end handles high-torque applications where a firm, positive drive is critical. Backed by a lifetime limited warranty, this set is a reliable long-term addition to any professional toolkit. Note: This is not an insulated tool.

Specifications

Set Size 10-Piece
Included Sizes 3/32 in, 7/64 in, 1/8 in, 9/64 in, 5/32 in, 3/16 in, 7/32 in, 1/4 in, 5/16 in, 3/8 in
Includes 10 T-Handle Hex Keys and Convenient Holder
Material Heat-Treated and Tempered Steel
Standard Compliance Exceeds ASME/ANSI Specifications
Handle Type Ergonomic Moulded T-Handle Grip for Maximum Torque & Comfort
Ball End Yes — Allows Up to 30° Misalignment
Drive End Square-Cut for High-Torque Applications
Warranty Lifetime Limited Warranty
Note Not an Insulated Tool