6pcs Multi-Function Step Drill Bit Set, Titanium Coated Cast Iron 4-20/12mm 3-12mm 3 6 8mm Multi-Size, One-Step Expansion Drilling, Suitable For Metal Plate, Wood, Plastic Drilling, Woodworking Installation, Pipe Operation Tools

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6. 6pcs Multi-Function Step Drill Bit Set, Titanium Coated Cast Iron 4-20/12mm 3-12mm 3 6 8mm Multi-Size, One-Step Expansion Drilling, Suitable For Metal Plate, Wood, Plastic Drilling, Woodworking Installation, Pipe Operation Tools

Available Sizes

• 6pcs
• 1PC-triangle Handle 4-12
• 7 Pieces (including Center Punch)

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