ER Tap Collets

Ox · Oct 13, 2017

I seldom ever use an actual tap collet, but have an app that we are right now, but the collet nut is absolutely buried! (internal for live toy lathe)

With an outside milling chuck - we would prolly hardly notice it, but in the lathe - it's an issue.

Just wondering if they are all this way, or if someone makes them that would be more at the top or mid of the [external] size range?

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Think Snow Eh!
Ox

Zahnrad Kopf · Oct 13, 2017

I am right there with you! I even asked MariTool if they made/carry any a short while back. If you find some, do let us know.

thesidetalker · Oct 13, 2017

Usually I understand your posts, but in this case I have no idea what you're asking :confused:

Ox · Oct 13, 2017

If you have a 3/8 collet, and you put a 3/8 tool in it, it will seat at the top of the taper, but if you put an 11/32 tool in it, it will seat at the bottom of the taper. The "tap collet" that i have here seats at the bottom of the taper, and with internal nuts, it's tough to tighten them clear down in there.

I have Axys (?) hex headed nuts that I can get a deep well socket on, and they werk swell, but my hex is down in the bore by the time it tightens up, and the other nuts just plain suck.

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Think Snow Eh!
Ox

thesidetalker · Oct 13, 2017

Oh so closer to the actual tap shank size?

ER collet?

I've been using techniks tapping collets for a little bit. Been working good so far.
ER Rigid Tap Collets (Inch)

They don't compress much since they are right on size. Bigger relief in the back fits the square nicely.

mTeryk · Oct 13, 2017

Ox said:
If you have a 3/8 collet, and you put a 3/4 tool in it, it will seat at the top of the taper, but if you put an 11/32 tool in it, it will seat at the bottom of the taper. The "tap collet" that i have here seats at the bottom of the taper, and with internal nuts, it's tough to tighten them clear down in there.

I have Axys (?) hex headed nuts that I can get a deep well socket on, and they werk swell, but my hex is down in the bore by the time it tightens up, and the other nuts just plain suck.

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Think Snow Eh!
Ox

Just so nobody gets even more confused. You mean a 3/8 tool in a 3/8 collet, correct?

mhajicek · Oct 13, 2017

http://www.techniksusa.com/downloads/catalog_pdfs/pgs_43-68_collets_2015_low_res.pdf

Page "54"

I believe MSC has some too.

Mtndew · Oct 13, 2017

Internal nuts? How does that work? I never knew that even existed. :confused:

DavidScott · Oct 13, 2017

Mtndew said:
Internal nuts? How does that work? I never knew that even existed.

Ice cold water.

Ox · Oct 13, 2017

Mtndew said:
Internal nuts? How does that work? I never knew that even existed.

Page 11:
http://www.exsys-tool.com/images/catalog/archive/tooling-accessory-catalog.pdf

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Think Snow Eh!
Ox

bw_4000 · Oct 13, 2017

Use the Tecniks quick change solid ER tap collet. I've used them with great success. They are a solid collet that snaps into your ER nut. You install the collet, tighten the nut, push the tap in the colletd to snap in place and then push on the little sleeve in front to release the tap.

Ox · Oct 13, 2017

If I ever use a "Bilz" style tap adaptor again - it'll be too soon!

(Short of someone ever actually getting the Intertap program going.)

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Think Snow Eh!
Ox

WILLEO6709 · Oct 13, 2017

If it’s not a tap, aren’t there some that have a device to hit the Weldon flat for more torque? I know some taps , nachi in particular have oversized shanks for better drive ability

Ox · Oct 13, 2017

WILLEO6709 said:
If it’s not a tap,

If what's not a tap?

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Think Snow Eh!
Ox

WILLEO6709 · Oct 13, 2017

Ox said:
If what's not a tap?

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Think Snow Eh!
Ox

your pic did not look like a tap... looked like some kinda crazy counterbore on the phone.... if you are not driving a tap you could maybe use the weldon style er collet and get similar toraque...

ManualEd · Oct 13, 2017

Not quite sure what you're after, but I like these floating tap collets from Iscar.

ISCAR Cutting Tools - Metal Working Tools - GTIN ER-ANSI (tapping)

They stick out past the collet nut a fair ways.
Sounds like you may want something that you can tighten when using those internal ER32 nuts. Or something that gives a bit more length for the tap.

Ox · Oct 13, 2017

WILLEO6709 said:
your pic did not look like a tap... looked like some kinda crazy counterbore on the phone.... if you are not driving a tap you could maybe use the weldon style er collet and get similar toraque...

That pic was years ago.
Just showing an internal nut to MtnDew.

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Think Snow Eh!
Ox

Ox · Oct 13, 2017

OK - here's a pic so's I don't hafta type out all 1000 werds. (I don't have voice recognition software here)

Pic shows nut way down in the bore by the time the collet gets tight.
It is a 3/8 tap in a 3/8 tap holder. It fits the bore of the collet as snug as a bug in a rug.
So one (at least I) would expect it to tighten up at the top of the taper - just like if I put a 3/8 drill in a 3/8 collet. (like the pic above) But it tightens up as if I put an 11/32 drill in a 3/8 collet.

Git it?

Again, it likely a non issue for outside nut apps, but for internal - it's an issue.
And I have seen some internal nut milling chucks - for reduced radial Clarence.

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Think Snow Eh!
Ox

TDegenhart · Oct 13, 2017

That looks like it takes a special wrench, like a refrigeration tubing wrench

Tom

Monarchist · Oct 13, 2017

Ox said:
OK - here's a pic so's I don't hafta type out all 1000 werds. (I don't have voice recognition software here)

Pic shows nut way down in the bore by the time the collet gets tight.
It is a 3/8 tap in a 3/8 tap holder. It fits the bore of the collet as snug as a bug in a rug.
So one (at least I) would expect it to tighten up at the top of the taper - just like if I put a 3/8 drill in a 3/8 collet. (like the pic above) But it tightens up as if I put an 11/32 drill in a 3/8 collet.

Git it?

Again, it likely a non issue for outside nut apps, but for internal - it's an issue.
And I have seen some internal nut milling chucks - for reduced radial Clarence.

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Think Snow Eh!
Ox

3/8" shank AKA 9.525 mm?

Do you happen to have BOTH US and Metrifuckated ER collets under-roof?
Or even a half-mm set?

Seems as if this task alone justifies ordering a coupla "onesies", anyway.

ER Tap Collets

Diamond

Diamond

Stainless

Diamond

Stainless

Hot Rolled

Diamond

Diamond

Diamond

Diamond

Cast Iron

Diamond

Diamond

Diamond

Diamond

Stainless

Diamond

Diamond

Diamond

Diamond

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