Evscope Security Screw

Evscope Security Screws Removal
Unistellar and telescope owners loosely recommended a T10 Torx screwdriver to remove the telescope housing and replace the SD card. This is not precisely true. As T10 is a security screwdriver, I checked and had these in my toolbox and didn't give it any more thought. However, after the card arrived on Tuesday September 15th, I prepared to remove the telescope case and suddenly the screwdriver did not fit.

Left: Closeup of a required TT10 wrench bit needed for eVscope screw removal has a central hole

Actual screw on the eVscope that needs removal. 
A TT10 tool is needed - the screw has a center pin.

The small black screws on the black telescope needed a magnifier to see what was going on. I used the iPhone X camera at 2x and discovered a central pin in the telescope screw. The T10 Torx wrench would need a center hole to work, which it did not have. Further study showed the required tool is not a T10 but rather more precisely a TT10. Photos of a TT10 wrench on the web 

confirmed this. 

At left, This is a T10 that will not work to remove the eVscope screw. At right, this is a TT10 screwdriver incorrectly labeled as a T10.

The big problem was half the screwdriver tools listed were incorrectly labeled, as seen in the photo with the blue handle screwdriver. This is clearly a TT10 incorrectly labeled as a T10. The TT10 screwdriver/ wrench has a central hole and the T10 does not.