Hex Allen Keys Sets (Long Pattern) Champhered Heads Proper Heat Treatment 48-52 Hrc Folding Plastic Holder Packing Black Specification CONTENTS Outer Box (Qty.) 9 PCS SET (SIZE WW) 1/16", 5/64", 3/32", 1/8", 5/32" 3/16", 7/32", 1/4", 5/16", 3/8") 48 9 PCS SET (SIZE MM) 48 1, 5, 2, 2.5, 3, 5, 6, 8, 10 48