Reamer question

[Junkout]

I ran across a neck reamer that I'm not certain what it's for. Any help would be appreciated..
It says
6mm spec nk rmr
. 3375nk

 

[DaveTooley]

The diameter is .3375".

 

[Junkout]

Yes sir that is true and I understand that. But that doesn't explain anything other than the diameter of the NECK reamer... Please explain

 

[STS]

That's quite a bit of clearance over a loaded 6mm case neck.

 

[Junkout]

I'm thinking it's not a 6mm per say.. It's a 6mm spec? I've heard of a 23x40 spec..
But I'm hoping for someone with some real knowledge to help me out with what I have

 

[Ggmac]

I'm thinking it's not a 6mm per say.. It's a 6mm spec? I've heard of a 23x40 spec..
But I'm hoping for someone with some real knowledge to help me out with what I have

Real knowledge on a web site is the reamer maker or customer that ordered it .

 

[Dusty Stevens]

what does it look like? its gonna be hard to get answers without seeing it. is it a chamber reamer? a 6mm chucking reamer? thats like me saying hey do yall know what this is? it says 7/8 on it.

 

[DaveTooley]

From the information you provided a neck reamer is a chucking reamer. It may have a pilot on it but it's still just a chucking reamer. It brings an existing hole up to a larger diameter. The length of that hole is controlled by you.

 

[Junkout]

I'll try to get a pic of the reamer tonight. Maybe that will shed some light.

 

[hogpatrol]

Another guess: a regrind of some sort with the original markings.