Irwin Professional HSS Titanium Nitrate coated jobber drillbits with 135°split point. IRWIN 15 Piece HSS Titanium Nitrate Coated Drill Bit Set 1.5mm - 10mm with Case. Sizes: 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 9 and 10mm.
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