3000 grit sandpaper

Just Carving · #11 04-12-2008, 03:51 PM

Wad a buncha rookies! Ya glue two sheets together back to back!!! 1500+1500=3000

Sheesh--don't you guys no nuttin?!?!

Bob L

Hi_Ho_Sliver · #12 04-12-2008, 04:53 PM

Quote:

Originally Posted by mdallensr

xsailer, if you fold it in half, it becomes 750 grit. Mike

depends on whether you turn it back to back or face to face ha ha

JIM QUILICI · #13 04-12-2008, 11:16 PM

Quote:

Originally Posted by xsailer

Seems to me you would want to fold your 1500 grit to get 3000 not cut in half. What do I know though.

I was good at math..........but this is a lot of thinking and calkulating......let me know if someone gets the answer.....lol
Jim

William M. Zerby · #14 04-13-2008, 09:09 PM

Hi all,
this is my first post and as sharpening, tooling and steels are some of the subjects I teach, I thought I might add this information for anyone who is interested. I am attaching an grit chart that compares the Japanese (JIS) grit system to FEPA (European), ANSI and other systems with a 3M ave. particle size in um (microns or micrometers). Shapton sizes their finishing stones in the JIS and the um systems. The 30,000 stone is rated at .48um, the 15,000 stone is rated at .96um and the 8000 stone is rated at 2um. There are 25.4um in 0.001", so a 30,000JIS stone works out to about 1/50 of the minimum thickness of a human hair (0.001" to approx. 0.004"). Another relative measure is 20# printer paper which is 0.004". DMT is offering a diamond stone in 8000JIS grit (3um). Most carvers usually end up in this range when finishing.

Kindest regards,
Bill

William M. Zerby · #15 04-13-2008, 09:23 PM

PS Here are a couple of carving knives I made. M2 HSS HRC 64 with African Blackwood handles.

Kindest regards,
Bill

axiky · #16 08-05-2008, 03:39 AM

in China.we just knock down a portion of stone from a big one.then hone is ready for using

i am new

Hi_Ho_Sliver · #17 08-05-2008, 10:01 AM

Quote:

Originally Posted by Just Carving

Wad a buncha rookies! Ya glue two sheets together back to back!!! 1500+1500=3000

Sheesh--don't you guys no nuttin?!?!

Bob L

Geez.....don't git abrasive!

Hi_Ho_Sliver · #18 08-05-2008, 10:05 AM

um? watchu talkin' 'bout?

Lynn O. Doughty · #19 08-05-2008, 11:06 AM

The first time I ever heard the term Scary Sharp I wondered who this person Scary was. Certainly it wouldn't be called that if it sharpened your tools to the point of their being scary. I have a lot of tools laying around my carving area that are very sharp but none of them scare me!

DADDIO · #20 08-05-2008, 01:37 PM

i'm a good ol southern boy and i like my grits with just butter!!! oohh wrong kinda grits sorry ya'll carry on!!