Sheldon's Tork-Grip also functions as an inertial impact alignment tool.
As for cleaning the lens cells, the diaphragm, and collimation, it is next to useless.
I'm pretty sure DAG is much less expensive than a genuine Tork-Grip.
TORK-GRIP Universal Torque Wrenches are not available in any store,
only on the Internet! Order Yours Today!!!