OP here:
I was shocked to see the 0.020in difference in suggested tap drill size chart from Little Machine Shop for brass vs steel.
Going 0.020in over the recommended tap drill size, however, gives me the heebie jeebies.
Those are just guidelines, why not just try the next largest drill? Something like G or H.
Using a new quality drill so it cuts clean and to size, might help prevent the heebies.
Looking forward to hearing how it goes for you.
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