Torq-Set® Insert Bits, #3, 1/4 in drive, Hex, Spring
Torq-Set® Insert Bits are used in torque-sensitive applications
The Torq-Set® head is similar in appearance to a Phillips® drive in that it has a cross with 4 arms
In Torq-Set® screw heads the arms of the cross are offset from each other and do not align to form intersecting slots across the top of the head
Because of this, a regular Phillips® or flat-head screwdriver will not fit the head
The Torq-Set® screw drive is commonly used in aerospace applications