04-01-2013, 06:48 AM
What type of stainless did you buy? Some types, like 304 are very difficult to tap, but 303 is very easy. Make sure you have a good quality tap (ground not cut) and hold it in a tap wrench, not a drill chuck. You can make sure it starts straight by supporting your tap wrench with a center in the tailstock. You can get or make spring loaded centers for just that purpose. Be sure to use a tapping fluid recommended for stainless.
Tom
Tom