Deburring tool

[Dot3]

I have a case prep station and need a better outside chamfering head. I’ve gone through two that didn’t do a good job. The standard Frankfort arsenal head and another, I can’t remember who made it. What’s happening is it’s actually creating a lip around the rim. Like it’s rolling the edge over to the outside. Is there a quality cutter anyone recommends that threads into a prep station?

 

[simonp]

I probably over think and over do it but I let my Girard deburr as it trims and then just prior to loading I run my brass through the tool from Worlds finest trimmer, I have a manual version that is pretty fast and handy but I wouldnt be surprised if they offer heads for prep stations.

 

[memilanuk]

The Lyman VLD tool fits in my RCBS Case Prep station, and works pretty well for me.

 

[FLIGHT762]

The Lyman VLD tool fits in my RCBS Case Prep station, and works pretty well for me.

I also have the RCBS prep station and swapped out the inside deburr tool with the Lyman. 100% better than the RCBS tool.

 

[Dot3]

I probably over think and over do it but I let my Girard deburr as it trims and then just prior to loading I run my brass through the tool from Worlds finest trimmer, I have a manual version that is pretty fast and handy but I wouldnt be surprised if they offer heads for prep stations.

Yep they do have tools that screw into a prep station. Will give it a try. Thanks

Will have a 3-way cutter before it’s all said and done, but in the meantime-gotta figure something out

 

[Dot3]

The Lyman VLD tool fits in my RCBS Case Prep station, and works pretty well for me.

I also have the RCBS prep station and swapped out the inside deburr tool with the Lyman. 100% better than the RCBS tool.

The inside chamfer isn’t a problem. It’s the outside chamfer. I should have been more clear. I’ve worn two out in short order. Wouldn’t think I’d wear them out but they used to leave a chamfer now they just leave a lip.

 

[FLIGHT762]

Since you need the outside tool, I'd look around to see if someone makes a carbide one that will fit on the prep center. It will be expensive, but may be what you need.

 

[memilanuk]

Well, then I think what you're looking for probably more correctly termed a 'deburring' tool. Chamfer on the inside of the case mouth to ease the bullet transition into the case neck, deburr on the outside to eliminate any sharp corners catching on things during feeding. Lyman offers one of those as well, generally made to the same standard as their VLD chamfer tool.

That said... sounds like you might be applying a *bit* too much pressure, if you're wearing out the deburring tool(s). Literally all you need to do is touch it to the spinning head for a couple seconds. Don't lean on it

 

[Dot3]

Since you need the outside tool, I'd look around to see if someone makes a carbide one that will fit on the prep center. It will be expensive, but may be what you need.

Yeah, just wondered if someone knew of one off the top of their head

 

[FLIGHT762]

RCBS makes this on amazon: https://www.amazon.com/RCBS-Trim-Ma...2d3b61b94336f7f118236c&qid=1758311715&sr=8-39

 

[Dot3]

Well, then I think what you're looking for probably more correctly termed a 'deburring' tool. Chamfer on the inside of the case mouth to ease the bullet transition into the case neck, deburr on the outside to eliminate any sharp corners catching on things during feeding. Lyman offers one of those as well, generally made to the same standard as their VLD chamfer tool.

That said... sounds like you might be applying a *bit* too much pressure, if you're wearing out the deburring tool(s).

The title and the body stated “Deburring” until I edited the body bc of the recs for chamfering tools. To your point about adding too much pressure, I’ve tried light pressure, heavy pressure, long dwell time, short dwell time. It no longer works. I chamfer before every loading but only deburr after a trim and there’s a definite burr. Used to be the tools I have removed the burr but they quit working. Maybe the burr is bigger because my trimmer head is worn out and chattering.

 

[Dot3]

RCBS makes this on amazon: https://www.amazon.com/RCBS-Trim-Ma...2d3b61b94336f7f118236c&qid=1758311715&sr=8-39

Hmm. Will have to take a closer look at that

 

[memilanuk]

Huh. Usually when the tool starts cutting poorly, yeah, a new (sharp) one is called for. If your trimmer is leaving a big nasty burr even when trimming after every firing, then maybe the cutter on your trimmer needs looked at.

I had fits for a while with my Giraud - but only in one caliber/cartridge (308 Win). Turned out, I'd worn out one set of cutters on the triangular head. I *thought* I'd rotated the cutter, but I still got big nasty burrs. Eventually I figured out that yes, I had rotated the cutter, but I'd let things bang against each other in storage, and managed to screw up the edge on the second cutter - even though it was carbide. Finally just got a new cutter, and everything worked again. Oh, and I make damn sure to wrap the cutter in something before putting it back in the drawer.

Not sure if any of that applies even tangentially to your situation, but maybe. I just don't know that getting a carbide deburring / "outside chamfer" tool is going to be fixing whatever the underlying real issue is.

Good luck.

 

[wv.citybilly]

Wilson Case Mouth Burring Tool
Wilson Burring Tool Power Adaptor

I clamp a vise to the bench, and put the drill (upside down) in the vise.

https://lewilson.com/case-mouth-burring-tool

 

[Mike Casselton]

I have a case prep station and need a better outside chamfering head. I’ve gone through two that didn’t do a good job. The standard Frankfort arsenal head and another, I can’t remember who made it. What’s happening is it’s actually creating a lip around the rim. Like it’s rolling the edge over to the outside. Is there a quality cutter anyone recommends that threads into a prep station?

Either the cutter is dull or you are using too much pressure on the tool.
The outside cutter should only remove the burr on the case mouth. You shouldn't be trying to create a taper or chamfer.

 

[Dot3]

Either the cutter is dull or you are using too much pressure on the tool.
The outside cutter should only remove the burr on the case mouth. You shouldn't be trying to create a taper or chamfer.

I’m thinking dull cutter more and more. I have a carbide cutter otw. I agree it should just be removing a burr but if it’s too big, the geometry of the Deburring tool would seem to roll the burr over instead of taking it off

 

[marchboom]

RCBS makes this on amazon: https://www.amazon.com/RCBS-Trim-Ma...2d3b61b94336f7f118236c&qid=1758311715&sr=8-39

I have used this tool for 7 yrs now and it's still sharp. Does a great job.

 

[Snuby642]

The inside chamfer isn’t a problem. It’s the outside chamfer. I should have been more clear. I’ve worn two out in short order. Wouldn’t think I’d wear them out but they used to leave a chamfer now they just leave a lip.

The Lyman inside and outside chamfer tool I have has done about 10 years worth and still going.

None of the inexpensive 3 in one cut, debur in and out tools were satisfactory .

Get the Lyman handle with the tools in it. Get an adapter from 1/4 hex drive to 8/32 or is it 6/32?
And you can run them in a cordless screwdriver .

 

[ma smith]

The Lyman outside deburring tool i have absolutely sucks ... It "smears" the burr rather than cuts it, you can easily catch fingernail on the burr.

On the other hand, the inside VLD deburring tool ...IMHO works fine (not as good as the Sinclair carbide, but still its pretty good), and the Lyman handles are excellent. They nicely sized for working without being annoyingly large (which matters for tool storage).

I guess my comment boils down to don't overgeneralize from a sample size of 1 unit, or from one product to the next.

Also worth mentionioning, at the risk of going down the rabbit hole... if you are spending $70-80 bucks on a cutter head, its like a 10-15% off coupon for a Giraud/Horndady or henderson 3 way trimmer. So if you're on the fence about that kind of solution, maybe its worth considering.

Best of luck and update the thread with your final results.

 

[Mike Casselton]

I’m thinking dull cutter more and more. I have a carbide cutter otw. I agree it should just be removing a burr but if it’s too big, the geometry of the Deburring tool would seem to roll the burr over instead of taking it off

You can tilt and rotate the brass to get those stubborn ones gone.

 

[Dot3]

Also worth mentionioning, at the risk of going down the rabbit hole... if you are spending $70-80 bucks on a cutter head, its like a 10-15% off coupon for a Giraud/Horndady or henderson 3 way trimmer. So if you're on the fence about that kind of solution, maybe its worth considering.

You are correct. I need one anyhow to speed things up

You can tilt and rotate the brass to get those stubborn ones gone.

I have tried that and the time it takes to get rid of it is way too long, hence really needing to get into a 3-way setup.

It only showed up on the last big batch I processed. This batch took way too long lol

 

[CK1.0]

Are you wet-tumbling your brass with or without SS pins (and for maybe too long)..?

If it’s that shit, there’s no deburr tool for that, you’ll have to trim it.

 

[CK1.0]

Post some pics of the brass.

I’ve never heard of anyone ever wearing out a deburr tool before.

 

[ma smith]

Post some pics of the brass.

I’ve never heard of anyone ever wearing out a deburr tool before.

My lyman one just came that way out of the box, so I think it was a lemon.

 

[Dot3]

Post some pics of the brass.

I’ve never heard of anyone ever wearing out a deburr tool before.

I took some pics but they don’t show anything so they’re not worth posting. I’m not saying I wore mine out, just that one came barely working and the one I got to replace it worked, but this time around I didn’t get the burr off. Again, I’m leaning towards a dull cutter now the more we talk about it.

No I don’t wet tumble with SS.