My house has a bath wash basin that is original to the 54 year old house. I think the faucet is a Gerber brand. I need to reseat the stem on the hot water side; new washers last only a few weeks.
The washers that work best are the convex type, not the flat ones. I have no experience with this, but it leads me to think that the seat may be cone shaped.
The reseat tools at Lowe's have flat grinder attachments only.
Are there cone shaped seat grinders, or is the flat grinder the correct shape to use for all lavatory faucets?