Sharp Maker rod grit?

[Vicinadp]

Does anyone know where i could find the grit on the sharp maker rods because on the knife websites I frequent they just say things like fine and ultra fine grit?

[chuck_roxas45]

Approx:

Medium:600
Fine: 1200
UF: 8000

[.357 mag]

I thought the UF was double the fine??

I thought it was 600,1000,2000. But I don't know ether.

[Vicinadp]

well that helps and kinda of makes me mad cause i just bought the uf rod and a waterstone that was 6000 grit thinking the uf rod was around 2000 grt but such as life

[chuck_roxas45]

The UF is approximately as fine as an EEF DMT but the important thing to note is that grit sizes don't necessarily translate to different abrasives.

[Vicinadp]

I just bought the EEF DMT stone.

[chuck_roxas45]

I just bought the EEF DMT stone.

When you get that stone broken in, you're set. :D

Well, that's until the dark side beckons once more and you get to thinking about strops.

[Chris_H]

Keep in mind the differences in rating scales and the equivalent numbers (e.g., micron, JIS, ANSI, FEPA, etc.). JIS 8000 is similar to ANSI 2000.

[jackknifeh]

I just bought the EEF DMT stone.

I don't want to come off sounding like I think I know everything because I don't. I got an EEF DMT stone for my set of other stones that I had been using for over a year. Due to the break-in period the EEF stone was much coarser brand new than the fine stone. I went through the grit progression and after using the EF stone I used the EEF stone and put a deeper scratch pattern back on the bevel. I used a kitchen knife with a flat blade (to cover the entire surface of the stone) and sharpened it for long enough to get the EEF stone to get through the break-in process. I now suggest to people who are going to use DMT stones to get the finest stones they think they will ever want so they start getting broken in right along with the rest of the stones. If you are already aware of the break-in issue forget I mentioned it. :D

[dbcad]

I don't want to come off sounding like I think I know everything because I don't. I got an EEF DMT stone for my set of other stones that I had been using for over a year. Due to the break-in period the EEF stone was much coarser brand new than the fine stone. I went through the grit progression and after using the EF stone I used the EEF stone and put a deeper scratch pattern back on the bevel. I used a kitchen knife with a flat blade (to cover the entire surface of the stone) and sharpened it for long enough to get the EEF stone to get through the break-in process. I now suggest to people who are going to use DMT stones to get the finest stones they think they will ever want so they start getting broken in right along with the rest of the stones. If you are already aware of the break-in issue forget I mentioned it. :D

This has been my experience also.

[Cliff Stamp]

About eight years ago I took a known grit abrasive, a 600 grit DMT pad (of which I had three at the time) and sharpened ten OLFA razor blades. I then cut very fine thread on a push, 1/4" poly on a slice and 3/8" hemp on a push and a slice. I also checked the edge under 100X magnification.

I then repeated the sharpening on the medium and fine rods, and repeated all the cutting. From the measurements on the cutting and checking the edges under magnification, and knowing the 600 grit DMT rod is 25 microns, I would estimate that the medium rods are 12.5 microns and the fine rods are 6.5 microns.

[razorsharp]

I think I recall sal saying there is no official grit on ceramic, its more a comparison of scratch pattern compared to , say, a stone