While I was kneeling of the floor in front of the bench tapping some 10BA holes the other day (had to be at that level to see if I had the tap square) I thought perhaps I should consider a tapping fixture to ensure square threads. These range from the G.H.Thomas Universal Pillar Tool at one end of the scale, to a small block with a hole in it just the right size for the tap to go through at the other end. What does anyone else use -and how good is it?
Regards
Kevin