This is a plain steel, 160 piece, metric woodruff key assortment that includes the following sizes: 2x2.6, 2x5, 2.5x3.7, 3x3.7, 3x5, 4x5, 4x6.5, 4x7.5, 5x6.5, 5x7.5, 5x10, 6x9, 6x10, 6x11, 8x11 and 8x13mm (woodruff key sizes are determined by width and height). It comes in a steel 10" x 13" box that is clearly labled and has a removeable plastic tray, hinged lid and latch. Part# WK-160. Please keep in mind we also stock other sizes of woodruff keys, contact us with your needs. 

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