![SOLVED: Can someone help me fill out this table Number of Threads per Inch UNF or UNC Tap Selected Nominal Size Tap Drill? Which Index? 4-40 3/8-24 1/2-20 6-32 1/4-20 4-48 10-24 SOLVED: Can someone help me fill out this table Number of Threads per Inch UNF or UNC Tap Selected Nominal Size Tap Drill? Which Index? 4-40 3/8-24 1/2-20 6-32 1/4-20 4-48 10-24](https://cdn.numerade.com/ask_images/060995ddf1224528972beb28d8610709.jpg)
SOLVED: Can someone help me fill out this table Number of Threads per Inch UNF or UNC Tap Selected Nominal Size Tap Drill? Which Index? 4-40 3/8-24 1/2-20 6-32 1/4-20 4-48 10-24
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UNC UNF Ø Pitch (TPI) Drill Size (inch) Pitch (TPI) Drill Size (inch) #0 - - 80 3/64 #1 64 0.059 (#53) 72 0.059 (#53) #2 56 0.0
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
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