Klein Tools' Pro Folding Hex Key line features a highly durable reinforced nylon handle with easy access to each key. The heavy-duty 31-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.

• Pro Folding Hex Key Set with extended-reach blades approximately 3-1/2-Inch to 4-1/2-Inch long for greater reach
• Includes 31 sizes: 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8, 1/2-inch, 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12 mm, T6, T8, T9, T10, T15, T20, T25, T27, T30, and T40
• Effortlessly adjust key tightness or looseness with the convenient #2 Phillips fastener
• High-leverage blades open independently up to 270 degrees
• Hex-key ends are square-cut for a secure, full-depth fit and maximum contact with the socket to prevent slippage and stripping
• Reinforced nylon handle has a sturdy, comfortable grip
• Blades are made of tough, heat-treated alloy steel and range from approximately 3-1/2-Inch to 4-1/2-Inch long coated to prevent rust
• Openings on the sides of case provide unimpeded access to outer keys