Re: [Amps] RE : Âamp hardware

[Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>]

It should be noted that most of the standard tables for tapping drill sizes are 
actually rather on the small side, being such as to provide 80% or even more 
engagement. This leads to a high strain on taps, and it's generally adequate to 
use a slightly larger drill, such that there is about 60 to 70% engagement.
73
Peter G3RZP
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps