What size Torx key is needed to remove driveshaft from a gearbox

[teaszer]

Hi I have finally got my gearbox out but I am now looking at a full ring of torx headed bolts. Does anyone know what size torx key is needed to remove these bolts as it doesn't look like any of my torx keys I have fit it as it has about double the amount splines inside.

 

[pgarner]

might not be torx could well be XZN bits which are very similar also sometimes know as tro square

 

[teaszer]

Found this image of what they are. Maybe i should check for writing on the actual bolt itself. Brb

 

[pgarner]

take it back there spline bits not sure what size however

 

[teaszer]

Yeah it looks like XZN. Going to buy them tomorrow.
Cheers pgarner .