just picked up a 3/4" hss round burr bit, it cuts popper mouths in ayc effortlessly and accurately they come in sizes up to 1".

And where did you get these little gems???:confused:

i went to MSC industrial supply co, pawtucket ri 401.725.4340, great co to deal with. they don't have in stock , but drop ship to you in 1 day( ups ground charges ).

Go to MSCDirect dot com! you will have it in a day or so..