MT3 to 2 & MT3 to 1 adapters?

[Alan H.]

A little research on Jacobs, Dormer and others via MSC.

The Jacobs are "soft with hardened tang". 雅各布是在中国制造的 (The Jacobs is made in China).

The Dormers are "oil toughened hardness". Der Dormer ist in Deutschland hergestellt!

They also sell Accupro and Collis which are "Hardened and Ground Throughout Hardness". El Accupro se fabrica en España. कॉलिस भारत में किया जाता है। (The Collis is made in India.)

So what would one what (edit: want) in a tailstock adapter - soft or hard? I assume for the hobbyist, it makes no difference. For a production environment, I assume "Hard as the Hobs of Hell" is better.

I am betting that McMaster would send you Jacobs or Accupro.

 

[Alan H.]

Okay! One of my friends and mentor here solved the MT3 to MT2 adapter source for me by sending me an ebay link.

The MT3 to MT1 adapter is still a work in progress.

So here's the Sioux that's now coming (NOS, complete with drift):

 

[darkzero]

Nice find!

Maybe I'm getting Collis confused with Collins? MSC does list some of the Collis sleeves as USA but there's also some marked India.

I think Mcmaster might supply Jacobs as well but I doubt they would supply Accupro. Accupro is a MSC brand & products in the Accupro line vary for COO.

I'm happy with my ZLive stuff. They seem to be well made. I have 2 live centers from ZLive, when I ordered my first one I ordered some of their sleeves. Otherwise I wouldn't have ordered them just by themselves. My other live centers are Skoda.

Just curious, what do you use that has a MT1 shank?

 

[Alan H.]

Thanks Will for the feedback on Z Live Center. They sell a bull nose center that I have eyed before.

My need for a MT3 to MT1 is minimal as you allude to. I do have a 9/16 spiral reamer that is coming that's a MT1. I am also in the initial throws of building out a decent collection of taper shank drill bits and if I land some smaller ones, then the MT1 adapter will be handy. But it is not a high priority and I am likely not going to spend too much on one for very limited use.

I may buy the one from McMaster just to see what they send. I am curious and as always, I have other stuff in my cart waiting for the click of the order button.

 

[darkzero]

Ah, taper shank drills & reamers, that makes sense!

 

[Alan H.]

If you do order adapters from Mcmaster, please share what brand you get. Mcmaster pretty much never sells junk.

. . . . . . . . . . .

Okay Will, both adapters received now.

The MT3 to 2 is a Sioux "made in USA" and acquired from ebay. It's the more important of the two I bought since it will be used far more the the MT3 t0 1.

I bought the MT3 to 1 from McMaster to see what they'd send and it is a Jacobs. The finish is very good and it appears to be excellent. I too have never gotten junk from McMaster. I suspect the Jacobs is made in Taiwan or ML China since it not proudly marked USA.

Here's a side by side photo of the two I bought: