What size drill bit would I use to drill hole to then to a 1/4' tap to make threads? Would I be using a 1/4 drill bit or is a 7/32' better
![uxcell 1/4-28 UNF Straight Flute Tap Left Hand and 5.4mm Twist Drill Bit Set, Titanium Plated High Speed Steel Drilling Bit Machine Threading Tap - Amazon.com uxcell 1/4-28 UNF Straight Flute Tap Left Hand and 5.4mm Twist Drill Bit Set, Titanium Plated High Speed Steel Drilling Bit Machine Threading Tap - Amazon.com](https://m.media-amazon.com/images/I/51894ZsOB2L.jpg)
uxcell 1/4-28 UNF Straight Flute Tap Left Hand and 5.4mm Twist Drill Bit Set, Titanium Plated High Speed Steel Drilling Bit Machine Threading Tap - Amazon.com
![Amazon.com: KING PRINT Tap Drill Poster Tap Drill Recommendations Chart with Machine Screw, Fractional and Metric Sizes Canvas Wall Art Hanging for CNC Shop, Garage, Toolbox, Green Poster : Tools & Home Amazon.com: KING PRINT Tap Drill Poster Tap Drill Recommendations Chart with Machine Screw, Fractional and Metric Sizes Canvas Wall Art Hanging for CNC Shop, Garage, Toolbox, Green Poster : Tools & Home](https://m.media-amazon.com/images/I/81tkrCL3WnL.jpg)
Amazon.com: KING PRINT Tap Drill Poster Tap Drill Recommendations Chart with Machine Screw, Fractional and Metric Sizes Canvas Wall Art Hanging for CNC Shop, Garage, Toolbox, Green Poster : Tools & Home
![Made in USA - Combination Drill Tap: 1/4-28, H3, 2B, 2 Flutes, High Speed Steel - 82770280 - MSC Industrial Supply Made in USA - Combination Drill Tap: 1/4-28, H3, 2B, 2 Flutes, High Speed Steel - 82770280 - MSC Industrial Supply](https://cdn.mscdirect.com/global/images/ProductImages/8277028-23.jpg)