5 PCS 10mm HSS Countersink Drill Bit Set, Woodworking Chamfer Counter Bit, Tapered Drill Bit for Wood Drilling, with Drill Stop Ring and Hex Wrench. Drill Material: HSS. Size: 2.8 10 mm, 3.0 10 mm, 3.2 10 mm, 3.5 10 mm, 4.0 10 mm.
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