[ARC5] tool help

[jfor at quik.com]

> Hi All,
>   I have a panel mount control box made by M.J.Johnson Aircraft
> Engineering Co., a R-4002,that is basically a copy of an A.R.C. type 12
> box.I've been useing it for a few weeks now with no problems.Suddenly
> the dial mechanism has bound up,not completely but tight.In order to
> dismantle I need to remove the knobs.The knobs look like A.R.C. knobs
> but the set screws are not spline (Bristo) type.Rather they look like
> they need a cross point (+) (Phillpips) screw driver.But not a pointed
> one.
>  What would this be called and where do I get a set?
>  Thanks,
>             Jay
>  Or is there a list member who could tackle this for me?

Are you sure they are not Bristol Spline? There are both 4 and 6 slot
Bristols in some sizes.

-John