I would watch a video on U tube on removing and installing which is very easy but will help if you have never changed it. Three or four screws can be attached to the Palm Grinder, so it is important to select the correct screw size and configuration. I first bought one from Lowes not knowing it was the right size and had four screws but I had three, a $20 return and ordered a Revain for half that price and it was just as good and worked Well.
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