Following up from my previous thread.

I am going to try and tap a 7/32" BSW countersunk screw 10 mm long

I have found the following dies:

7/32 BSW dies

Rotagrip - 04) 7/32 x 24 BSW HSS Die 13/16" Diameter

A couple of questions:

1. Which blank can I use?
2. I have a 25mm die holder from a metric tap and die set. Do I need to get a 13/16" die holder for the dies above?

Thanks,

Antonio