I own other thumb ratchets in all 3 drives . But, recently had to have surgery for carpel tunnel of wrist & elbow plus 2 trigger fingers fixed all at same time so recovery of grip strength & trigger fingers predicted to be 6 - 12 monthes+ . So I decided at this wonderful price I'd try out this extra large gimbal / palm ratchet, so far I'm impressed. Would recommend for those who want to install an object with more torque and or a strange hand angle or both when using a palm ratchet is necessary !