Set of twelve huge jumbo hex keys in a handy plastic storage case
Ideal for use on large machinery
40Cr material with black oxide finish
includes both metric mm sizes and AF imperial inch sizes
Metric mm sizes included are: 8mm, 10mm, 12mm, 14mm, 17mm, 19mm
AF inch sixes are: 3/8", 7/16", 1/2", 9/16", 5/8", 3/4"