Drill and tap size for grease fittings?

[Streetbu]

Many are 1/4-28 thread....

 

[clean8485]

Thank you.

 

[pontiacgp]

Thank you.

Have you thought about getting the same set I got in the size you want. With the mystery discount I got it was under $10 in Can currency and it took only 5 days to get here

 

[clean8485]

I appreciate the suggestion Steve, but I have all of the parts here already. I just want to make sure that I drill and tap the holes to the right size.

 

[joesregalproject]

#7 drill bit and a 1/4-28 tap. That is how we always did them when I was taking machine shop classes, and I still do them that way.