Hand Tools

Subject:
Diamond plates
Response To:
Flattening ()

Patrick Chase
I've tried DMT Dia-Flat, DMT Dia-Sharp, DMT Duo-Sharp, Atoma, Eze-Lap, and Shapton plates at one time or another.

In terms of flatness the Shapton is the best (but it's a pretty pointless advantage over cheaper options, as you say), followed by Atoma, Dia-Flat, Dia-Sharp, Duo-Sharp, and Eze-Lap in that order.

For me Dia-Sharp is the bar of acceptability - it and everything I listed as better works terrifically for stone flattening. Of the others Duo-Sharp and Eze-Lap are hit or miss, with Eze-Lap being prone to occasional obnoxiously large flatness errors. I think fine-tools gets it about right with their warning "Note" (in the yellow box) here: https://www.fine-tools.com/ezelap-diasharpener.html.

Another thing to be aware of with Eze-Lap is that they're made using a combination of monocrystalline and polycrystalline diamonds. While this partially counters monocrystalline plates' tendency to "wear in" and slow down, it also means that you're cutting with a mixture of worn-down monocrystalline corners and recently-fractured "fresh" polycrystalline facets. I think that may explain the nonuniformity you saw with your watch face.

My Shapton has lasted several years with noticeable degradation, but I'm super careful with it. No metal has ever touched it other than a fine brass brush, and I generally only use it on fairly fine-grit waterstones. I can't seriously recommend it to anybody concerned about cost, though, as the incremetal performance advantage is small while the monetary cost and reduction in usable life are both quite severe.

The Atomas are IMO the best tradeoff: They're flat (second only to Shapton and not by much), more durable than any of the others except perhaps DiaFlat, uniform (again second only to Shapton), and reasonably inexpensive.

I do have one cautionary note about Atoma: If you indend to use an Atoma plate for flattening stones, then don't use it on tools. The Atoma plate consists of a 1 mm thick stainless steel plate with the electroplated abrasive, bonded to a much thicker flat aluminum blank. The bonding uses 3 pieces of Nitto 5015 double-sticky acrylic tape, one at each end and one in the center. If you work tools on the plate you will eventually cause the thinner stainless plate to "sag" between the tape strips, compromising its flatness. For this reason I prefer diamond compounds and lapping films for actual tool work, though I'm also trying to use up a set of EZE-Laps that way :-).

Messages In This Thread

flattening Waterstones- shapton pro
Re: flattening Waterstones- shapton pro
Re: flattening Waterstones- shapton pro
Re: flattening Waterstones- shapton pro
Re: flattening Waterstones- shapton pro
Flattening
Revise atoma price...
Re: Revise dia-sharp price...
Diamond plates
Re: Diamond plates
Diamond plates......
Re: diasharp vs. diaflat
Re: diasharp vs. diaflat
Re: I think...
Re: I think...
Re: flattening Waterstones- shapton pro
Yes, this
lapping film?
Re: lapping film?
Re: lapping film?
you are not kidding!
Re: lapping film?
A different perspective *LINK*
Re: A different perspective
Not universal preference
to date
Re: to date
Re: to date
Re: to date
Re: to date
:) *NM*
Re: to date
Re: A different perspective
My Opinion...
Re: My Opinion...
My thoughts
Re: My thoughts
Re: My thoughts
The flat wheel surface - or not..
Re: The flat wheel surface - or not..
Re: The flat wheel surface - or not..
Re: The flat wheel surface - or not..
CBN and grit
How Are You Cleaning The CBN Wheel . . .
Re: How Are You Cleaning The CBN Wheel . . .
Re: How Are You Cleaning The CBN Wheel . . .
Why grind unhardened steel on CBN?
Re: Why grind unhardened steel on CBN?
Re: How Are You Cleaning The CBN Wheel . . .
Re: A different perspective
Re: flattening Waterstones- shapton pro
Quick and dirty summary:
Re: Quick and dirty summary:
Atoma - $64
Re: Atoma - $64
Sandpaper Flattening & Shaptons
Re: Sandpaper Flattening & Shaptons
Re: Sandpaper Flattening & Shaptons
Re: Sandpaper Flattening & Shaptons
Stearate coating
Re: Stearate coating
Re: Stearate coating
Re: Stearate coating
Plastic laminating sheet
Re: Stearate coating
which side to use?
Re: which side to use?
Re: which side to use?
Re: which side to use?
a little bit the Indian and a little bit arrow
Re: a little bit the Indian and a little bit arrow
What a great thread this has been.....
Re: What a great thread this has been.....
Re: What a great thread this has been.....
Re: What a great thread this has been.....
Traditional Method
Re: Traditional Method
Re: Traditional Method
Re: Traditional Method *LINK* *PIC*
Re: Traditional Method
Re: Traditional Method
Re: Traditional Method
Re: Traditional Method
Re: Traditional Method
Re: Traditional Method
Re: Traditional Method
Re: Traditional Method
Re: Traditional Method
Re: Traditional Method
My apologies for being a bit too harsh..
Re: Washita vs soft Arkansas stones...
Re: Washita vs soft Arkansas stones...
Re: Washita vs soft Arkansas stones...
Re: Washita vs soft Arkansas stones...
well then....
Another possibility presents itself......
CBN plates
Re: Not making sense..
Diamond wear
Re: Diamond wear
Re: Diamond wear
Re: Diamond wear
Re: Not making sense..
Re: Not making sense..
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