![wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange](https://i.stack.imgur.com/4n67A.jpg)
wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange
![Super Heavy Duty Concrete Bolt (Lightning-Bolt, Thunderbolt, Ankerbolt) with Hexagonal Head (1000 Hour Salt Spray Tested) (M6 x 50mm (20PACK)) Super Heavy Duty Concrete Bolt (Lightning-Bolt, Thunderbolt, Ankerbolt) with Hexagonal Head (1000 Hour Salt Spray Tested) (M6 x 50mm (20PACK))](https://m.media-amazon.com/images/I/51KWzBW6ieL._AC_UF350,350_QL80_DpWeblab_.jpg)
Super Heavy Duty Concrete Bolt (Lightning-Bolt, Thunderbolt, Ankerbolt) with Hexagonal Head (1000 Hour Salt Spray Tested) (M6 x 50mm (20PACK))
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
![wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange wood - When pre-drilling for screws, how do you determine the correct bit diameter? - Home Improvement Stack Exchange](https://i.stack.imgur.com/QFhEk.jpg)