Chamfering tool - any good?

[Kram]

Im reasonably certain it uses the same TPMT08? carbide inserts as the others in this thread, you can see then in the pic, it just doesnt come with any spares - Im hoping it comes with some fitted!

Mine was a different listing but I got the last one.

You're a bad influence...

@MattF would you agree?

 

[MattF]

@MattF would you agree?

Too damn right I would.

 

[Agroshield]

...I might have to adapt it for brushless grinder use.

A brushless angle grinder might not spin fast enough (the air one is in excess of 20k rpm). Maybe a higher rpm die grinder might be closer place to start from.

...for sorting out sheet metal...

I am wondering how it would work on sheet metal. It relies on the bearing running against the face of the thing being cut to guide it and regulate width of cut.

On anything with significant thickness, there is a straight shoulder of uncut material along which the bearing can run. On sheet, this shoulder is greatly reduced. Ideally, you need no gap at all between the bottom of the cutter and top of the bearing - and every commercial bearing has a small fillet radius on its edges.

Draw a cross section of it in CAD and make some educated guesses concering the minimum thickness of material on which it would function.

Maybe you could sleeve the bearing so the sleeve projects upwards a little and overlaps the cutting edge. Effectively, you are making a zero-clearance cutter.

I think the Chinese copies may be derived from this one:

CB-01

A world-renowned Japanese designer and manufacturer of high-quality pumps, couplers and tools

www.nitto-kohki.eu

FWIW, this one says 3mm minimum thickness:

https://www.amazon.co.uk/Fubdnefvo-Chamfering-Machine-Deburring-4xBearing/dp/B0D4CNXDM8

 

[Munkul]

I got one and its surprisingly good for putting a bevel on mitred box section for butt welding. A grinder will do it just as fast and at the same volume, but with a lot more vibration. The height adjustment works well too, so you just keep going back and forth until it doesn't bite off any more.
Would i say it's an essential tool? Not really.

 

[Gritineye]

Couple of youtuber fabricators swear by them, seem to last ages on steel too.

Can't put a link cos they talk about them in various videos, not specific recommendations.

 

[MattF]

I got one and its surprisingly good for putting a bevel on mitred box section for butt welding. A grinder will do it just as fast and at the same volume, but with a lot more vibration. The height adjustment works well too, so you just keep going back and forth until it doesn't bite off any more.
Would i say it's an essential tool? Not really.

How do they compare on the front of chips vs sparks? Do the chips fling as far as sparks, & do they need as wide a berth from flammables & such?

 

[pressbrake1]

I use mine for back chamfering/countersinking bores on castings
Saves a load of faff

 

[Munkul]

How do they compare on the front of chips vs sparks? Do the chips fling as far as sparks, & do they need as wide a berth from flammables & such?

Not sure, hadn't thought about it. Probably just as far flung as decent sparks.

 

[E T]

How do they compare on the front of chips vs sparks? Do the chips fling as far as sparks, & do they need as wide a berth from flammables & such?

The chips travel about the same distance as sparks from a grinder I guess, never really paid any attention to that.
But there is no grinding dust that goes everywhere and the chips are definitely not hot.
They always stay nice and shiny, no discolouration at all.

 

[Brad93]

Anyone got a link to a reasonable quality one of these? There appears to be dozens of types/styles

 

[Agroshield]

Anyone got a link to a reasonable quality one of these?

CB-01

A world-renowned Japanese designer and manufacturer of high-quality pumps, couplers and tools

www.nitto-kohki.eu

Nitto Kohki are Japanese.

 

[pressbrake1]

Anyone got a link to a reasonable quality one of these? There appears to be dozens of types/styles

I’ve been using a generic one for over a year and it’s fine .
I think some things are worth dropping coin and others can’t pay back . I did have a electric plate beveller for heavy work

 

[Brad93]

I’ve been using a generic one for over a year and it’s fine .
I think some things are worth dropping coin and others can’t pay back . I did have a electric plate beveller for heavy work

Yes no need to spend beveller money, I just wanted to see if anyone had a recommendation based on personal experience.

 

[MattF]

Would these bevel stainless?

 

[Agroshield]

Would these bevel stainless?

In the user instructions for the Nitto Kohki one they discuss this matter; they have a specific set of inserts for stainless (and one for aluminium/non-ferrous and one for steel).

 

[Brad93]

In the user instructions for the Nitto Kohki one they discuss this matter; they have a specific set of inserts for stainless (and one for aluminium/non-ferrous and one for steel).

Those are the originals

 

[Munkul]

This is the one I bought

Air Chamfer Tool Trimming Mini Chamfering Pneumatic Beveling Machine Deburring | eBay

ãHIGHER CUTTING EFFICIENCYãUsing the thinnest outer 1mm hexagon nut lock bearing, it can be chamfered in the narrowest and shallowest space, suitable for various angles, such as straight edge chamfering, inner and outer round hole chamfering, irregular chamfering, keyway Polygon chamfer.

www.ebay.co.uk

its a tenner cheaper now than it was when i bought it!

 

[Brad93]

This is the one I bought

Air Chamfer Tool Trimming Mini Chamfering Pneumatic Beveling Machine Deburring | eBay

ãHIGHER CUTTING EFFICIENCYãUsing the thinnest outer 1mm hexagon nut lock bearing, it can be chamfered in the narrowest and shallowest space, suitable for various angles, such as straight edge chamfering, inner and outer round hole chamfering, irregular chamfering, keyway Polygon chamfer.

www.ebay.co.uk

its a tenner cheaper now than it was when i bought it!

purchased

 

[Kram]

My £6 cheapy arrived and looks good. Wont have access to my compressor for a few days tho.

The one I linked is now showing as £13.40 with the discount

Looking at inserts, I like the idea of the 1mm or 1.5mm radius type, but do they work well in this? I cant see them much cheaper than £15 for a box of 10.

 

[MattF]

Looking at inserts, I like the idea of the 1mm or 1.5mm radius type, but do they work well in this? I cant see them much cheaper than £15 for a box of 10.

This's why I went for one with some inserts included. They seem to be the pricey bits. I went for this one.

AMTOVL Air Chamfer Tool - https://amzn.eu/d/3agM00x

The yellow one is cheaper, but I went with the black one.