what does "hollow ground" mean?

Al Lembo

unread,

Oct 2, 2002, 10:48:35 AM10/2/02

to

seen this term a million times but don't know what it means.

thanks
Al Lembo

Steve B

unread,

Oct 2, 2002, 11:29:17 AM10/2/02

to

Hollow ground can be applied to the whole blade or just the bevel. It
means ground with a wheel, so that the knife or bevel edge is concave.
In contrast to flat ground or convex, or Moran, ground.

Steve

Corwin

unread,

Oct 2, 2002, 11:38:25 AM10/2/02

to

> seen this term a million times but don't know what it means.
>
> thanks
> Al Lembo

There are several different ways to grind the blade of a knife... Hollow,
Flat, Convex, Sabre, Chisel, etc etc...

Hollow Ground knives are shaped like two concave archs...coming to an edge.
It makes the edge of the knife ultra thin. The Hollow grind is generally
speaking the sharpest of all the grinds, but also the weakest. Spyderco's
knives are primarily Hollow Ground, with a few models available in Flat
grinds... you can probably find info on this at the FAQ's on bladeforums.com
they're pretty good.

neL.

Al Lembo

unread,

Oct 2, 2002, 12:56:58 PM10/2/02

to

so I take it then, after us consumers start sharpening, a hollow grind
doesn't last very long since most consumer methods would result in the
flattening of the bevel.

the reason for the question. I just got an Edgepro Apex and was
wondering whether it's easier to rest the knife on the "facet" that
some of my knives have, that leads down to the edge, or the flat part
along the back of the blade. I thought maybe that having such a facet
was the characteristic of "hollow ground".

thanks for the replies.

Al

Nunya Business

unread,

Oct 2, 2002, 3:12:07 PM10/2/02

to

That's like when Indians were buried someplace and you're not supposed
to dig them back up to build an amusement park or something. ; )

Al Lembo <alemb...@optonline.net> wrote in message news:<on1mpukev9ljo9422...@4ax.com>...

Corwin

unread,

Oct 2, 2002, 4:21:08 PM10/2/02

to

LOL that was funny..

Steve B

unread,

Oct 2, 2002, 6:19:46 PM10/2/02

to

The facet or bevel is the original sharpening angle, no matter how it is
ground. should be around 20 degrees.

Steve

DougŽ

unread,

Oct 2, 2002, 11:52:08 PM10/2/02

to

On 2 Oct 2002 12:12:07 -0700, fullo...@hotmail.com (Nunya Business)
scribbled with their crayola:

>That's like when Indians were buried someplace and you're not supposed
>to dig them back up to build an amusement park or something. ; )

Damn you. Again, I shot beer through my nose when reading
that!
=)

Doug®
ICQ# - 49024165
AOL IM - sokolistalina
http://members.tripod.com/~russianmartialart/systema.html

Carl.

unread,

Oct 2, 2002, 11:53:19 PM10/2/02

to

Hollow grinding refers to the bevel (I can never remember which is primary
and which is secondary) that does NOT create the cutting edge. The bevel
that goes almost all the way to the spine of the blade on most knives.

The classic Buck folder has a hollow-ground blade. Old shaving razors (the
kind you can kill someone with, grimly described) are extremely hollow
ground.

"Al Lembo" <alemb...@optonline.net> wrote in message

news:pp8mpus406j07fvnb...@4ax.com...

Al Lembo

unread,

Oct 3, 2002, 10:48:14 AM10/3/02

to

so then the "faceted surface" that I've described below is actually
the feature that makes a blade "hollow ground" and hollow ground has
nothing to do with the cutting edge?

On Thu, 03 Oct 2002 03:53:19 GMT, "Carl." <Kronk...@hotmail.com>
wrote:

Corwin

unread,

Oct 3, 2002, 12:13:51 PM10/3/02

to

yes.. the "faceted surface" that u described is the hollow grind... but it
does have something to do with the cutting edge, maybe not in your
application, but a hollow grind will make the cutting edge thinner than
other grinds.

neL.

"Al Lembo" <alemb...@optonline.net> wrote in message

news:i1mopukj6dk1utnoe...@4ax.com...

Gyppo

unread,

Oct 3, 2002, 4:24:13 PM10/3/02

to

On Wed, 02 Oct 2002 23:52:08 -0400, DougŽ
<sokolista...@hotmail.com> wrote:

>On 2 Oct 2002 12:12:07 -0700, fullo...@hotmail.com (Nunya Business)
>scribbled with their crayola:
>
>>That's like when Indians were buried someplace and you're not supposed
>>to dig them back up to build an amusement park or something. ; )
>
> Damn you. Again, I shot beer through my nose when reading
>that!

Even further off topic - except that it perhaps
gives them an extra 'edge' in court cases, is the
story/claim that some Australian Aborigines carry a few
bits of rock around in their car, ready to create an
instant 'sacred site' when they find somewhere they
want to stay.

Maybe an Australian group member can confirm or
deny this story?

Gyppo

John Craggs Writer - Adult Tutor - Storyteller
and All Round Rogue
Need a laugh? Then subscribe to The Monday Silly Digest
Mail to: gy...@cwcom.net MSD SUB as Subject line, please

Al Lembo

unread,

Oct 3, 2002, 5:14:42 PM10/3/02

to

yes, I see now.

Carl.

unread,

Oct 4, 2002, 12:31:39 AM10/4/02

to

You are correct sir.

"Al Lembo" <alemb...@optonline.net> wrote in message

news:i1mopukj6dk1utnoe...@4ax.com...