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IRWIN Metric Tap & Drill Sets

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Make Drilling Into Metal a Cinch With Drilling Taps

Tap and drill sets simplify the process of drilling into metal by reducing the number of tools you need for the task. Also, they eliminate the need to use a drill conversion chart to determine the bit and tap sizes you need to create holes for specific fastener sizes. Read on to learn more about taps for drills to streamline your project.


Frequently Asked Questions


Q: What’s a tap and drill set?

A: A tap and drill set allows you to create threaded holes in metal that can receive fasteners, such as screws or bolts. A set includes one or more pairs of drill bits and threaded taps, which some people call drilling taps. Each bit has a diameter that’s slightly smaller than that of the corresponding tap. You use the drill bit to bore the hole into the metal, and then use the tap to cut threads into the wall of the hole.


Explore more tips for using a power drill safely and effectively in our guide on the subject, How to Use a Drill.


Q: What size drill bits and taps do I need for a tap?

A: A benefit of using a tap and drill set is that it eliminates many of the steps you would otherwise need to take to tap a hole, including determining the correct bit and tap sizes. With a tap and drill set, each drill bit has a corresponding tap. To tap a hole without a tap and drill set, consult a tap and drill conversion chart to determine the correct sizes for your project.


Q: How do I choose a drill tap?

A: Drilling taps come in standard and metric sizes, and your choice of tap should depend on the intended hole size. It’s also important that you select the correct drill tap for the metal that you’re drilling into, and that you consider whether you’re drilling the hole completely through the material.


Check out our how-to and buying guides on Lowes.com to learn more about choosing the best power drills and drill bits for your project.