Suitable for use in: Alloy Steels, Carbon Steels, Cast Iron, Hardened Alloy Steels, Stainless Steels. 10 Piece SET10PRO: 10 Drills: 1, 2, 3, 4, 5, 6, 7, 8, 9 and 10mm.13 Piece SET13PRO: 13 Drills: 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.2, 4.5, 5, 5.5, 6 and 6.5mm.Plastic storage case.
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