DEWALT DWHT70263M Folding Locking Hex Key Set, MM
DEWALT Folding Locking Hex Key Sets have a push-button locking feature that locks in 3 positions at 90°, 135°and 180°.  It has Durable and ergonomic construction with steel side plate for torque (up to 600in. lbs).  They include 8 of the most commonly used hex key sizes.  Available in SAE or MM sizes.