funny reamer holder...

[LVLAaron]

All this talk of reamer holders lately had me looking at ebay for things I don't need. I came across this Kennametal floating reamer holder. It seemed interesting because it has the usual parallel float, as well as angular.

They retail for 900-ish dollars, and was "unused, no box" for about 120 bucks. I figured I might as well give it a whirl.




USPS showed up today... and... it's a little bigger than I expected. I was laughing for several minutes.


Have a laugh at my expense. It might be useful if I ever do a BMG.

 

[X Count]

Beautiful! . . . . Just turn that shank down to MT4, dial that flush system to 50psi and have at it!!

 

[LVLAaron]

Beautiful! . . . . Just turn that shank down to MT4, dial that flush system to 50psi and have at it!!

My thought was I could turn it down, or adapt it to something. Turns out it's hollow so it's pretty much gotta stay how it is

 

[Ggmac]

put a bicycle handle bar grip on it and go at it . It’s a floating reamer holder , wheres the switch that makes it float ( levitate) . Better get a leash on it when it floats .

 

[DaveTooley]

I saw one used in another shop prior to buying my Haas. I got one, probably off eBay, anticipating using it. I never tried using it as I soon got my little tailstock rigged up on the tool post.

 

[Tucker65]

I use something very similar from Kennametal on my lathe. It had a solid straight shank on it so I turned it down to fit the taper in my tailstock. Up front it had a 1" collet and they didn't make any collets to fit the reamer shanks so I purchased an ER collet chuck so I can hang on to the tools without any slip fit adapters. It has been working really well for me and the chambers have been on size and true.

 

[shortgrass]

We used floating holders like that on automatic screw machines and turret lathes years ago, when machine tools such as these were in common use. (if you don't know what a screw machine is search "Acme Gridley" on ebay/utube. the only 'screws' we made were highly specialized types, and 10,000+ per order)

 

[boltfluter]

All this talk of reamer holders lately had me looking at ebay for things I don't need. I came across this Kennametal floating reamer holder. It seemed interesting because it has the usual parallel float, as well as angular.

They retail for 900-ish dollars, and was "unused, no box" for about 120 bucks. I figured I might as well give it a whirl.




USPS showed up today... and... it's a little bigger than I expected. I was laughing for several minutes.


Have a laugh at my expense. It might be useful if I ever do a BMG.




View attachment 1503213

Believe it or not but this is a very good floating reamer holder. The very first one I used years ago to cut my first chamber. They also come as a number 2 or 3 Morse taper. Give it a go, you may be pleasantly surprised by the results. Keep us in the loop if you do.
Paul

 

[LVLAaron]

I have a collet coming in a day or two for it, so I might.

It's got a 1.5 inch shank on it... I'll have to figure out a way to hold it. It's so heavy/stiff I can't imagine it actually "floating" something like a 223 reamer.

 

[Pete Wass]

Anybody using the smaller Screw Machine floating holders? some of them are quite small.

They can be seen for sale on Ebay.

 

[DHuffman]

Glad you saw it first LOL

 

[Sniperhandle]

I have a collet coming in a day or two for it, so I might.

It's got a 1.5 inch shank on it... I'll have to figure out a way to hold it. It's so heavy/stiff I can't imagine it actually "floating" something like a 223 reamer.

Cut it off and heli-arc a shank on and machine it square.

 

[LVLAaron]

It's got enough beef on it, I could thread and shoulder up an MT3 adapter on it.

 

[Walt Krafft]

Anybody using the smaller Screw Machine floating holders? some of them are quite small.

They can be seen for sale on Ebay.

I am using a floating holder similar to a B&S, but it has no markings on it and I do not remember where I got it. Ebay 185879751484 is close to what mine looks like. Mine has ball bearings between the two parts. Tighten the two bolts and it won't float. Leave them a little loose and it floats great. The better the alignment is between the spindle and tailstock, the less float is needed.

 

[LVLAaron]

 

[Pete Wass]

Seen it

 

[LVLAaron]

Seen it

Looks like a fun little shop project.

 

[xr650rRider]

After $300 in materials, he could have bought a JGS.
https://www.hobby-machinist.com/threads/a-floating-chucking-reamer-why-not.109059/#post-1081720

 

[LVLAaron]

It’s the journey, not the destination.


His can handle angular misalignment, JGS can’t.

 

[xr650rRider]

His can handle angular misalignment, JGS can’t.

Ahhhh. 1/2" hole with a 7/16" reamer.