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CO-Z Titanium Step Drill Bit 1/4′ to 1-3/8′ – [Add a Weldless Bulkhead to Your Kettle] – $9.55 + free prime ship
CO-Z 10 Sizes Titanium Step Drill Bit, High Speed Steel 1/4″ to 1-3/8″ Drill Bits Set for Sheet Metal Hole Drilling, HSS Multiple Hole Stepped Up Bit for DIY Lovers From the product des…