How to Tighten Bench Grinder Wheels and Nuts (4 Easy Steps)
WEBOct 18, 2019 · Hand tighten the nut. Take a screwdriver and place it into the slot on the arbor (this will hold the wheel still). Place a wrench on the nut and tighten. Again, do not over tighten but just make it tight enough. 1/4 turn after hand tightening may be all you will need. Tip 1: you may use an impact wrench as well.