this set of 10 Hexagon Allen Keys are provided on a key-ring type holder to keep them all in one place. Each Hex Key Is Held On A Key-Ring Type Holder Used To Drive Bolts & Screws With Hexagonal Socket In Head Ideal Set For Home D.I.Y Or Professional Heat Treated Carbon Steel Set Includes Sizes : 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8 & 10mm Dimensions : Approx
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