re: HF DA & rotory polisher
I swapped out the OEM phillips screws for 4mm hex caps screws (m4x.70x16), flat washer & split lock washers from Lowes.
For the HF rotory, you can use m4 x .70 x 14 as they're a little bit shorter.
I did the grease mod on both units and it does diffinitely makes a...