What he said. MV uses torx heads on most things that are on the motor.Those bolts, like all the case cover bolts are torx - not hex key bolts, did you use the right tool?:wtf:
If so they probably aren't that tight, maybe try to cut a slot and use an impact screwdriver before you start drilling.
Thanks for the help guys. Some elbow grease and a bit of luck got those stupid torx out and replaced with SS 6mm hex heads. Now how do you check the oil level? Do I screw the dip stick all the way in or just dip the stick in up to the thread, it's quite a retarded design.