Tips/Techniques Looking for an inside (interior, backside?) deburring tool.

[JustaDB]

The issue I'm trying to address is the burr created when a smaller diameter drill breaks through smaller diameter walled metal, say, tubing, a bushing, pipe or hollow structural steel. I've tried using files, both flat & rat tail, along the interior, but often I find I'm just chasing the burr back into the drilled hole, then out again.

I seem to recall Blondihacks mentioning something about this somewhere, but a search has proved fruitless.

What does everybody else use?

TIA.

 

[Dan Dubeau]

Nogo/shaviv make blades with a hook to reach in and deburr the edges you're talking about. They're relatively cheap too, and work pretty good

Edit: Here's one. https://www.kbctools.ca/itemdetail/1-457-612 There are a couple different styles for different materials, and they're a very good investment IMO

 

[DavidR8]

@Dan Dubeau beat me to it... I have that exact blade for my Noga deburr tool and can attest that it works very well.

 

[Stellrammer]

I think Noga still does a version of the Cogsdill flip cut

 

[thestelster]

I think Noga still does a version of the Cogsdill flip cutView attachment 32936

I've never seen that before! Close it, put through hole, flip it open? Different sizes?

 

[PeterT]

If you mean these 'backside' chamfering tools, Noga calls theirs reversible countersinks. Yes, you put it through the hole, the blade wings out, deburr, then exit the way you enetered.

R1 - BR1001

b,

www.noga.com

 

[Dan Dubeau]

I've never seen that before! Close it, put through hole, flip it open? Different sizes?

I think you run them in reverse to insert, then forward to deburr, then revers again to exit. I've seen videos of them, pretty slick, but never seen them in the wild.

 

[thestelster]

I just googled Cogsdill. Wow. Very cool.

 

[Mcgyver]

I've got a bunch of those spring loaded things, I think it would be ideal for CNC and does both top and bottom in a pass

 

[thestelster]

I've got a bunch of those spring loaded things, I think it would be ideal for CNC and does both top and bottom in a pass

My god man, is there anything you don't have?

 

[Tom O]

Besides a bank account.

 

[Mcgyver]

lol, I have a lot of stuff I've collected over the years (or rather decades,, three now). All based on the old maxim, you want it cheap, fast and high quality, pick two. I just picked cheap and high quality

 

[JustaDB]

Thanks to everyone for their suggestions. That gives me a couple of options.

 

[Aliva]

https://www.aliexpress.com/item/1005003336535675.html?spm=a2g0o.productlist.main.79.2bd8746baoR3ZP&algo_pvid=dd1fda5d-e343-4934-a52d-2625a1617e74&aem_p4p_detail=202304020506228318591268885960017453717&algo_exp_id=dd1fda5d-e343-4934-a52d-2625a1617e74-39&pdp_ext_f=%7B%22sku_id%22%3A%2212000025283070489%22%7D&pdp_npi=3%40dis%21USD%2134.03%2121.78%21%21%21%21%21%402102176616804371823532063d0767%2112000025283070489%21sea%21CA%210&curPageLogUid=L1jO5ZixQqyd&ad_pvid=202304020506228318591268885960017453717_10&ad_pvid=202304020506228318591268885960017453717_10

 

[JustaDB]

Thx, Aliva. I've never ordered from aliexpress before. This may be a worthy first try.

 

[Susquatch]

Thx, Aliva. I've never ordered from aliexpress before. This may be a worthy first try.

First try eh......

Try not to give up too easily.

It will all make great sense after a bottle of yellow pills, a full flask of whiskey, or a long argument with the wife about all the 1000 times she says you screwed up.

You can also post screen shots here and we will try to explain why 6mm is a different colour than 12mm or how you can get it on sale by buying something else you don't want instead......

 

[Aliva]

I just bought this Noga from Amazon.CA it was slightly less than Aliexpress and it's a Noga, not a knock off

Noga RC2000 Medium Reversible Deburring Tool Holder Set : Amazon.ca: Industrial & Scientific

Noga RC2000 Medium Reversible Deburring Tool Holder Set : Amazon.ca: Industrial & Scientific

www.amazon.ca

Blades are little pricey Amazon wants 100.00$ for 5. Aliexpress is 16.00$ each plus 11.00$ shipping

 

[Upnorth]

You can go to "The Yard" aviation supply company and look for an in and out deburring tool. Depending on how small of a hole you need to deburr they might be suitable. They often have some interesting surplus tools.