Torx security bit problem

I am helping a friend who works for the scrap yard locate a torx security bit.... he more or less has an unlimited supply of the gas valves from inside furnaces. The problem he is having and I have run into it is this.... we can't find a bit to fit cetrain brands of the screws for the valve covers... They are the torx security screws... T-10 is too small and T-15 is too big.. we have tried bits from 3 or 4 different brand sets. So, now we are kind of stumped. He has the option of putting it thru their aligator sheer or even grinding the screws off.... but first option leaves a big mess to clean up and second is rather slow for the return.

Any suggestions?

Thanks

Harbor freight sells security bit sets... try that maybe?

Also, sometimes you can use a small slotted bit in a torx head. Not the strongest connection, but it's gotten the job done for me before.

try a big tool company...snap on, mac, matco, etc. You may pay a bit more, but it will pay off in the end. Plus lifetime warranty.

Thanks everyone... I happend to see a snap on truck at a shop when I went for lunch and went to see him. Billygoat you were right, it was indeed a torx plus.... well 35 bucks including tax later for (1) 1/4 in drive fora ratchet... But that's ok.... This guy finds me stuff to rip apart at the scrap yard....

Learn something new every day... will have to make a change jar now to buy a whole set for myself :S

I use a slightly bigger drill bit and just drill the haeds off of those inbetween sized ones

Hi guys just want to know if a regular torx 10 (T10) screwdriver will work to open the ps3 case up.

I found a set at Manards that has about every kind of bit you'll ever need - regular Torx, Allen, flat, & phillips as well as "security" torx (pin in the center) , 3 blade and I think something else. no handle just alot of bits in a red case.