Klein hex-keys are the tools professionals cannot afford to be without. Heat-treated and tempered for superior strength and durability. Klein hex-keys are designed for a precise fit in sockets, preventing slippage and stripping of the socket.Features T-Handle design delivers more torque to the fasteners Tip size: 5 mm Treated steel for rust and corrosion resistance Sizes marked on individual T-handles Soft touch grips for maximum control and comfort Warnings NOT insulated. Will NOT protect against electrical shock. Always wear approved eye protection. Blade Length: 6 in (15.2 cm) Size: 5 mm End: Ball Weight: 0.1500 lbs (2.4 oz) Height: 0.75 in Depth: 7 in Width: 3 in Material: Treated Steel Country of Origin: Slovenia Sub Brand: Journeyman Measurement Standard: Metric Style Name: Metric Size Name: 5-mm DownloadsVideo DownloadSpec Sheet