Recommendationon on ER25 MT2 collet chuck

[frugalguido]

Ordered the Iscar, with my discounts, $129

 

[frugalguido]

Just to update this thread, received the Iscar chuck. It is nice and they included a bearing collet nut, which wasn't mentioned in the description.

 

[Cadillac STS]

My understanding is that ETM and Iscar are made in the same factory in Israel. The ETM is more expensive though, for some reason.

Very possible both are made in the same factory with same process on same machines. But when the final product tests out the more precision one is sold under different name and for higher price.

 

[compact8]

Just to update this thread, received the Iscar chuck. It is nice and they included a bearing collet nut, which wasn't mentioned in the description.

View attachment 318282View attachment 318283

I have also got an EMCO FB2 , may I know if you have measured the TIR of this chuck when used together with EMCO ER25 collets ?

 

[frugalguido]

I have also got an EMCO FB2 , may I know if you have measured the TIR of this chuck when used together with EMCO ER25 collets ?

No I haven't but I do use the same EMCO collets.

 

[compact8]

No I haven't but I do use the same EMCO collets.

May I know where you bought it from? I have done a bit of searching but couldn’t find it.

 

[frugalguido]

I purchased the chuck from MSC at the time.

 

[compact8]

I purchased the chuck from MSC at the time.

Thanks ! found it at this page of MSC : https://www.mscdirect.com/product/details/07543341#specifications It doesn't specify the thread of the draw bar. EMCO original is M10. May I know the thread size of the holder you have bought ?

 

[RaisedByWolves]

I have Shars ER32 holders for R8 and for MT3. I bought ball bearing nuts for both because they appear to seat without twisting the collet on the ol' eyeball test. Usually when I use one I don't think to check runout, mainly because whatever is clamped in the collet looks to be standing still and runs without vibes. That's not very quantitative, but I don't want to feed into my psychology over a few tenths of runout at a step like chucking a tool in a collet. For the most part, under .005" on finished work is on the mark in my world. So if you'll accept anecdotal evidence, the Shars collet holders work great.

Yeah, never in my 38yrs of doing this have I been concerned with runout of an endmill.

Then one day I found a suburban tool video about runout affecting your edge finder and or center finder (it doesn't) and I never gave this topic another thought.

I got one from Icarbide on e bay and it works well.

Security Measure

www.ebay.com

 

[frugalguido]

Thanks ! found it at this page of MSC : https://www.mscdirect.com/product/details/07543341#specifications It doesn't specify the thread of the draw bar. EMCO original is M10. May I know the thread size of the holder you have bought ?

I think it is 3/8" if I remember correctly, I would have to check.