Rock bits

[US-Subs]

Found this at a show this weekend, being offered as an "exotic". I recognized it for what it was but at $5.00 couldn't resist. We had a thread on these a year or so ago, but I cannot find it. I don't remember what we called them, rock bits, drill points, something of the sort. Anyway here is another variation.

 

[butterfly]

Found this at a show this weekend, being offered as an "exotic". I recognized it for what it was but at $5.00 couldn't resist. We had a thread on these a year or so ago, but I cannot find it. I don't remember what we called them, rock bits, drill points, something of the sort. Anyway here is another variation.

View attachment 70586 View attachment 70587

At $5.00 it cost nothing.

Here is a link to an old thread Jeff, not sure it is the one you were looking for....?
http://www.bocn.co.uk/vbforum/threads/74244-Well-I-ll-be-danged?highlight=rock

thanks for showing, regards Kev

 

[US-Subs]

Thanks Kev, that was not the exact one, but at the end of it was a link to the one I was looking for - http://www.bocn.co.uk/vbforum/threads/63915-Another-tungsten-carbide-AP-core Looks like we've found several variations now, they keep showing up as ordnance pieces - interesting stuff.

 

[SG500]

It looks like it would fly quite well........

Dave.

 

[US-Subs]

After it peeled the lands and grooves out of the barrel....

 

[beihan62]

Sort of opposite to sqeeze bore,,,,,,it looks like a road planer tooth,
Don,

 

[Jolly Green]

Going to a show this weekend. I'll keep an eye out. Lol

 

[ordman]

Gee I wonder if these are rock bits

http://www.cdvs.us/40mm-AP-cores-medium-P1145.aspx

 

[peteblight]

They look like it!

 

[HAZORD]

Hey Ordman,

Thats the same jackass that had the fake law rocket! I told you that guy combines the wrong stuff all the time.

 

[US-Subs]

I like the 40mm with AP penetrator that he shows. I guess that's why we have threads like this.

 

[Gspragge]

1 Pr Maxim Nordenfelt

He listed this, it's a bit rough but cheap if you have a fuze, A Maxim Nordenfelt 1 Pr.

The usual unmarked Brit case is proper.

 

[Falcon]

I work with machinery that uses similar bits to this. One of the other guys actually said to me "that looks like one of your shells". I told him that these things are often actually mistaken for some sort of projectile.

I also once took a 6 Pounder APDS projectile into work to clean up the rusted base. One of the guys saw it on my bench after the cleaning and said "what's that? a new milling cutter?"

 

[ordman]

Hazord

Just thought I'd throw it out there see what happens:hmmmm:

 

[imaokie2000]

That Rock Bit was allmost as good as my 25mm Plumb Bob!