Proto® 7 Piece Metric Folding Hex Key Set ITEM #:J4974 Features and benefits Specifications Features and benefits Chrome plated steel case is 3-1/2" long.Black oxide bits are 3" long. Specifications Unit of Measure Metric Finish Black Oxide Style Folding Piece Count 7 Tips Hex Overall Length [in] 3-1/2 Weight [Lbs] 0.31 Add to Wish list Add to Set Buy Now Print Warranty Share