Are Torx Security bits compatible with non-security bits?

I am looking to upgrade my wife's old Macbook Pro with an SSD, following this guide: Installazione dell'hard drive nel MacBook Pro Unibody 13", versione metà 2010

It says we need a T6 Torx screwdriver. I thought it was weird that the driver kits being sold by iFixIt wouldn't include anything higher than T5 for non-security Torx bits, but then I saw the following on this page: TR6 Torx Security Screwdriver

"Security drilling on this driver makes sure that you won't be stopped by anything, even though this driver still works great in non-security T6 screws as well."

So, can anyone confirm if Torx Security bits are compatible with Torx non-security bits, and does this hold true for all Torx bit sizes?