How can I tell the handedness of a bolt?
The torque on the bolt is highest when the blade is engaged. Be careful when thinking of this since as the blade is engaged and accelerates, the blade itself&mdash;due to the acceleration (or resistance of that acceleration by the blade itself)&mdash;wants to "slip" in the opposite direction. This "slip direction" should be the direction that tightens the bolt. So then loosen the bolt in the same direction as the blade rotates.