I'm want to buy Shapton professional stones and am thinking about how
to keep them flat. I watched a video clip on their website
The video shows Harrelson use the Shapton DRLP to keep the stones flat
and also to reference the blade bevel (That's how he words it. Really I
think he means he is giving the blade it's general shape and making it
very flat to speed sharpening.) The DRLP looks great but I do not think
I can afford it now. I am not keen on using sandpaper and glass to keep
the stones flat. It seems wasteful and takes up more space. I do not
want to use the Shapton compact lapping system because keeping the
powders in stock seems like a pain.
For keeping stones flat, how do the DMT duosharp plates compare to the
DRLP? Which grade duosharp matches the DRLP? Which grade DMT stones do
you like for flattening stones?
I have read old posts here that say using a DMT plate to keep
waterstones flat is a bad idea because the way the diamonds are
attached to the substrate is destroyed by the waterstone. However the
Shapton stones are ceramic so maybe that will make a difference. How
durable is the DRLP when used with stones?
How durable is the DRLP when used with steel? I have read old posts
here (some by Steve Knight) that say diamonds and steel are a very bad
match and the diamond stones will wear out quickly when used with
steel. Does this apply to the DRLP?
How much flatter will the DRLP keep the stones and will it really
affect sharpening time or quality? The DRLP is flat to 0.0004" on the
stone side and the DMT diamond stones are flat within 0.003" or
according to Lee Valley 0.005".
The shapton professional stones are 8-1/4" x 2-3/4". Duosharps plates
are 10" x 4". The Shapton site does not say how large the surface is on
The DRLP costs $489 and a Duosharp plate costs $119.
Part of the problem is during my phone conversation with Harrelson he
hyped the DRLP so much he made me think I cannot do without it. Maybe
it is that much better but maybe he is stalling a sale by trying to
sell me such an expensive system.
Any info or experiences appreciated.