Although I had a bit set with Tri-Wing bit, but they are just after the peak thickness (hex) and suck therefore of limited value, since the safety screws in electrical appliances like sitting times in a deep hole, not much bigger than the screw head is!
Bits of Wolfcraft sets have at least an approximately 2.35 cm long slender body before they are thick (50 mm is the length of the * entire * bits incl. Recording!).
The pictures of Amazon are all incorrect, so I have uploaded original images.
