I will have to agree with Rivets. Attached is a picture of what I use. I used to use the putty knife on the left, but found the sharp corners make it harder to use. I found the thing on the right when I purchased my HRX. I think it is specifically made for mowers. I haven't had to use it much, though (at least on my HRX), because I have found that the grass I mow doesn't stick to the NeXite deck.I hear it is a good idea to spray the bottom of a new HRX with Pam. Is this true or not? If Fluid Film better?