Goldpan countersunk hole angle.

[askbob]

Trying to figure out what degree the angle is on the goldpans bottom countersunk holes. Namely the smaller ones. Found a good 90 degree 1/4" countersink bit, just want to make sure of the angle?

[scr8p]

4-40 screws = 82 degree
8-32 screws = 100 degree

[askbob]

Thanks sr8p. I guess 90 degrees will be close enough for the 4-40.

[askbob]

This: http://www.ebay.com/itm/230754553862?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649 worked the charm. Good quality too.