anyone willing to make a hole guide specially for rails?

[reefy86]

Good call if Nick is up for it.
I made one a while back for tapping and actually tapped the thread into the guide rather than a tap clearance hole. That way the tap is held straight and winds itself into the hole to start the thread. Works both ways so up to you.
Mine was aluminium as I had it to hand and only needed a few holes. Silver steel is a better option for longevity.

Thanks mate, just out of curiosity would one set made out of silver steel handle 500+ holes? if not then i may need to ask for a few if magic is up for it.