1/2"-13 2B Pitch Diameter is pitch diameter of 0.450 to 0.4565, or an average of 0.45325 with a tap drill size of 0.4219
So if your pitch diameter is .4715 to .465, or an average of 0.46825, wouldn't it make sense to have a tap drill size of +.015" larger @ 0.4369"? |