What is the name of this collet?

316head · Nov 28, 2020

This is probably an easy one...

To the left is a basic ER16 collet and on the right is a similarly sized collet that is not ER16. What are these called? Thank you.

Matt_Maguire · Nov 28, 2020

It's a TG style collet.

Matt

Vancbiker · Nov 28, 2020

I've always heard that style called a TG collet.

Peter from Holland · Nov 28, 2020

Left is not a ER collet
Right one is a OZ

Peter

gregormarwick · Nov 28, 2020

It's not a TG collet, the shape of the upper taper / extraction groove is wrong.

Doesn't look quite like a DIN 6388 (OZ / 450E) either

My best guess is that it's a Big Kaiser NBC - New Baby Collets | BIG KAISER

wmpy · Nov 28, 2020

I'll second the NBC guess. I've got some lathes where the live tools take NBC collets. An operator who doesn't know any better has put ER collets into the holders before. They kinda fit, but the taper isn't right.

Pete Deal · Nov 29, 2020

Yea and the NBC collets are like $60 ea. I just bought half dozen Kaiser tool holders thinking they were ER holders. Luckily the guy will take them back.

TeachMePlease · Nov 30, 2020

I just happen to have a couple NBC8 collets on my desk. I'd say that you've probably got an NBC collet, not sure what size. My NBC8s are about the same size as an ER11 collet.

Edit: The face of my collets is marked with BIG NBC 8-2.25 AA to indicate they're NBC collets, 8-2.25 indicates an NBC8 collet in 2.25mm diameter, AA class runout.

Ox · Dec 2, 2020

Well that was a TG collet for me too 'till the end here.
Not too old to learn yet I guess.
Although I doo shun it.

---------------

Think Snow Eh!
Ox

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What is the name of this collet?

316head

Aluminum

Matt_Maguire

Stainless

Vancbiker

Diamond

Peter from Holland

Diamond

gregormarwick

Diamond

wmpy

Hot Rolled

Pete Deal

Titanium

TeachMePlease

Diamond

Ox

Diamond

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