Klein Tools' Pro Folding Hex Key line features a highly durable reinforced nylon handle with easy access to each key. The heavy-duty 10-Piece set includes 4-Inch-long extended reach blades and a strategically placed #2 Phillips fastener on the outer body for effortless key tension adjustment. Klein Tools' hex sets are color-coded for quick identification: red for inch, blue for mm, and green for Torx®, enhancing efficiency.Features Reinforced nylon handle has a sturdy, comfortable grip Effortlessly adjust key tightness or looseness with the convenient #2 Phillips fastener High-leverage blades open independently up to 270 degrees Pro Folding Hex Key Set with 10 extended-reach blade approximately 3-1/2-Inch to 4-1/2-Inch long for greater reach Key sizes include 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, and 12mm Hex-key ends are square-cut for a secure, full-depth fit and maximum contact with the socket to prevent slippage and stripping Square-Cut Ends, Industrial Strength, Heat Treated Alloy Steel Blades are made of tough, heat-treated alloy steel and and black phosphate coated to prevent rust Openings on the sides of case provide unimpeded access to outer keys Warnings Do NOT extend handle length. Always wear approved eye protection. NOT insulated. Plastic-dipped or slip-on plastic handles are NOT intended for protection against electrical shock. Type: Folding Set Application: Secure Hex Bolt Fastening Key Lengths: 3.5 in to 4.5 in (8.9 to 11.4 cm) Overall Length: 6.6 in (16.8 cm) Overall Height: 2.15 in (6.4 cm) Overall Width: 1.36 in (3.5 cm) Handle Length: 6.63 in (16.9 cm) Height: 1.37 in Width: 2.1 in Depth: 6.63 in Weight: 1.01 lb Material: CR-V Steel, Reinforced Nylon Finish: Black Phosphate End: Flat Color: Orange Measurement Standard: Metric Handle Type: Reinforced Nylon Country of Origin: Vietnam DownloadsBroshure 1Spec Sheet