Screwdriver type (torque limiter calibrated and set). 

: T-20+ Torx

TIP:

When replacing or rotating inserts, the seat should be as clean as possible. This will prevent breakage of inserts and ensure proper insert alignment. To properly align the insert, press the insert away from the seat while tightening to approximately 55 inch pounds torque. This allows the countersink in the tip and the taper of the head on the flathead screw to slide the tip into its proper position.