I thought I had triple square bits, but stupidly I don't. I can't undo the bracket holding the intake manifold without it. Are there any shops that sell them on the highstreet? Or will another tool fit to bodge it?

You might find a local motor factors will sell tools too

Machine mart sell them.

I have this set:

https://www.machinemart.co.uk/p/cht144-40-pce-torxspline-bit-holder-s/

Triple square bits are also known as spline or XZN bits

There are other sets / options on the machine mart website

Edited 16 April, 201610 yr by 0wl

Thanks guys life savers. I've had to remove the throttle body from the im whilst still in the car. It's otherwise impossible to reach that 10mm TS bolt.

Ok guys don't yell at me, I know it's totally wrong but I figured it wasn't a crucial bit. I managed to get it out using a t50 bit. It's damaged the bolt head a little but not terribly. Getting it back in is going to be fun though...