Can anyone identify this type of milling cutter and its purpose

[GreensandsParticipant @greensands]

I have discovered this milling cutter amongst my collection of slitting saws and the like which I have never come across before or seen any reference to and I am just wondering what type of cutter it is and what it might be used for.  I am sure someone will provide the answer.

[Andrew JohnstonParticipant @andrewjohnston13878]

I’ve got some similar cutters; used for cutting acute V-shaped grooves. I used one of mine for grooving the rims for the rear wheels on my traction engines to make it look like they were made from two rings held together by the strakes, as per full size. No idea what the cutters would have been used for industrially.

Andrew

[DiogenesParticipant @diogenes]

If you want to describe it, it’s a ‘single angle’ milling cutter.

There’s a brief discussion of H/milling cutter types here;

https://johnfsworkshop.org/home/processes-links/processes-removing-metal/the-milling-machine/toolholders-and-cutters-links/cutters-for-horizontal-milling/

 

 

[John HaineParticipant @johnhaine32865]

Ratchet wheel cutter?

[roy entwistleParticipant @royentwistle24699]

A photo end on might help

[Bob WorsleyParticipant @bobworsley31976]

Roller chain gear teeth.

 

[GreensandsParticipant @greensands]

End view of the cutter

[Michael GilliganParticipant @michaelgilligan61133]

Looks like a Rack cutter to me

MichaelG.

[John HaineParticipant @johnhaine32865]

I’d call that an edge view but I agree with Michael, looks like a rack cutter as the teeth have straight sides and are symmetrical w.r.t. the diametral plane.

[Andrew JohnstonParticipant @andrewjohnston13878]

If it was a rack cutter I’d expect the cutter to have information on the side relating to the DP/Module as a minimum?

Andrew

[Michael GilliganParticipant @michaelgilligan61133]

So would I, Andrew … I was merely expressing what it looked-like to me

I had engaged ‘capability mode’

MichaelG.

[BazyleParticipant @bazyle]

Its info is given as “3 x.125 x 1” A regular slitting saw or side and face cutter would just have the width so what is the 1 indicating?

edit DOH it’s the hole size of course.

I guess just general purpose grooves – like for mass producing clockmaker’s finger plates, count wheels for synchronome slaves, detent wheels on rotary encoders.

[DC31kParticipant @dc31k]

If the OP would measure the angle of the vee that the cutter would produce, it would allow this thread to explore an entirely new continent of speculation.

[Bo’sunParticipant @bosun58570]

I’d guess some sort of shaving/finishing cutter, judging by the number of teeth and reactively small gullet for chip clearance.  As I say, just a guess.  But as to what for, no idea I’m afraid.

[Chris GunnParticipant @chrisgunn36534]

We used cutters like these to put a vee groove in nail holding jaws on our nailing machines. I subsequently used one to make some scale chequer plate, the shallow grooves looked good in a diamond pattern.

Chris Gunn

[Nigel Graham 2Participant @nigelgraham2]

Vice-jaw grooves… also oil-retaining grooves on large, flat sliding surfaces?

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