Anyone know what these are and how these are used?

[YYCHM]

These came with my shaper.....

I think they are keyway broaches and the shanks would fit my shaper round tool holder BUT how would one use them on a shaper? I'm thinking they aren't a shaper a tool at all and used in some other way.

Anyone?

 

[Dabbler]

yes, they are broaches to make keyways.

 

[YYCHM]

yes, they are broaches to make keyways.

On a shaper?

 

[Dabbler]

yup.

 

[RobinHood]

For sure square broaches. Use them for key ways, making square holes, making rectangular slots, etc. They work very well, used them quite a bit - both on the shaper and on the mill.

 

[YYCHM]

For sure square broaches. Use them for key ways, making square holes, making rectangular slots, etc. They work very well, used them quite a bit - both on the shaper and on the mill.

Ok.... so we are sure they aren't rotary broaching tools then?

 

[RobinHood]

Yes, absolutely sure. I suppose one could try and use them in a rotary broach - I think, however, there would be way too much stick-out. RB tooling is usually short.

Have a look here for some samples:
http://www.slatertools.com/?gclid=EAIaIQobChMItau6xJCt8gIVxAp9Ch2VFguyEAAYASAAEgKGMfD_BwE

 

[trlvn]

For sure square broaches. Use them for key ways, making square holes, making rectangular slots, etc. They work very well, used them quite a bit - both on the shaper and on the mill.

Just curious...are these intended to cut the full width of the keyway at once? (Stepping down to the desired depth.) The larger one looks like it might be 1/2 inch wide. That would be a pretty intense chip coming off!

Craig

 

[YYCHM]

Just curious...are these intended to cut the full width of the keyway at once? (Stepping down to the desired depth.) The larger one looks like it might be 1/2 inch wide. That would be a pretty intense chip coming off!

Craig

They are 1/4" and 3/16". A thin 1/4" wide chip shouldn't be that bad, I would think? Will find out shortly.

 

[kevin.decelles]

I try to cut my keyways in one pass (full width) when possible. I found multiple passes yielded oversize slots. This was where the chinese T&C grinder pays off as you can precisely cut a HSS tool to the exact width.

Let me know how the setup works YYC, deflection is the enemy there.

 

[YYCHM]

Hmmm..... Why am I having my doubts about this?

It just feels wrong?

@francist have you ever cut keyways on your shaper with this kind of tool?

 

[RobinHood]

That is the correct set-up. It will work. Slow and steady down feed or raise the table. Either way works.

 

[francist]

have you ever cut keyways on your shaper with this kind of tool?

No, I myself have not but my keyway cutting has been limited since I’ve had the shaper. From what others are saying though you’re on the right track. I’m eagerly awaiting the results…

 

[YYCHM]

Well......

Here is the 1/4" slot. I'm surprised... it does work. The tool tends to climb so the bottom of the slot is a little ramped. I think this is the first time I've heard my clapper actually clap.

 

[Tomc938]

Good to know it works, but wouldn't it make more sense to use it for an INSIDE keyway in a "donut" (can't think of what the proper word would be" On a shaft or square piece traditional tools and setup would work. Inside you don't have the clearance, so this set up would make sense.

 

[YYCHM]

Good to know it works, but wouldn't it make more sense to use it for an INSIDE keyway in a "donut" (can't think of what the proper word would be" On a shaft or square piece traditional tools and setup would work. Inside you don't have the clearance, so this set up would make sense.

Yes.... ideally suited to making internal keyways in gears etc. I was skeptical that a tool of this configuration would accomplish anything on a shaper, so I set off to try it and just used a scrap piece of mild steel I had laying around.

 

[RobinHood]

Good job on making the square key slot.

The tool may be a bit dull - and thus perhaps not enough clearance starting immediately behind the cutting edge. This would have a tendency to “deflect” the tool out of the cut, resulting in the observed ramp.

 

[YYCHM]

And the 3/16" slot.....

Once more a ramped bottom face but I'm thinking that locking the clapper like @kevin.decelles suggested would eliminate some of that. And they do need to be sharpened.

I wonder where I could get some more of these tools? What's the proper name for them?

 

[RobinHood]

Is there not a maker’s mark on the tools? - or maybe I am thinking of other tooling…

Here is a company that sells carbide inserted tooling for shapers. They also post prices.
https://6kproducts.com/shaper_cutting_tools.html

 

[YYCHM]

Is there not a maker’s mark on the tools? - or maybe I am thinking of other tooling…

Here is a company that sells carbide inserted tooling for shapers. They also post prices.
https://6kproducts.com/shaper_cutting_tools.html

Hmmmmm..... Their Shaper Cutting Insert Holder Shanks start at 3/4" dia