Groz Hex/Allen Keys With Ball End. 7 Piece. 3/32″, 1/8″, 5/32″, 3/16″, 1/4″, 5/16″, 3/8″. Long Imperial Chamfered hex end Ball end permits easy access in tight, hard to reach spaces – up to 30 degree angle in recess from the screw head. Superior S2 steel construction. Hardened and tempered with corrosion resistant bright nickel plating Hardness: 50-52 HRC

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