Drill chuck; new China or used German?

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Bill Shields
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Re: Drill chuck; new China or used German?

Post by Bill Shields »

Or you can use it for jobs where drill center is no a major issue

However...if you grab an edge finder it may wobble no matter what..
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Mr Ron
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Re: Drill chuck; new China or used German?

Post by Mr Ron »

I would go with a used Rohm or Albrecht. If they have excessive wear, they can be rebuilt with new part: Chinese if runout is not a problem.
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Harold_V
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Re: Drill chuck; new China or used German?

Post by Harold_V »

Unfortunately the killer cheap prices for rebuild parts for Albrecht chucks appears to be a thing of the past. I can remember when a set of jaws was only about $30.

Anyone here have a source for Albrecht parts that doesn't break the bank?

H
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Bill Shields
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Re: Drill chuck; new China or used German?

Post by Bill Shields »

Still cheaper than new and better result than Asian ..YGWYPF
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Re: Drill chuck; new China or used German?

Post by ctwo »

I don't think Asians don't make quality, they just don't ship much of it here. Can't wait for the report.
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Bill Shields
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Re: Drill chuck; new China or used German?

Post by Bill Shields »

I like Japanese tooling and cutters and whatnot.

The few ROK cutters that I have seen to be good.

If I just need something cheap and cannot find used from elsewhere ..and accuracy not a drop dead requirement...like hex collets...I go for cheapest.
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Re: Drill chuck; new China or used German?

Post by liveaboard »

The results are in;
New China no-name 16mm chuck runout is 0.12mm +- 0.02 (measured arbor runout before mounting)
Used German 13mm Rohm chuck, runout 0.06mm (arbor not checked before mounting).

So if runout is the criteria, the Rohm wins; however, the new China chuck holds better. Holding a 10mm tap I was able to cut through 12 parts each 25mm long without slipping, and release was easy too.

So, I'm happy with my chuck collection, especially for the price I paid.
Chinese chuck runout.jpg
tapping with 16mm chinese chuck.jpg
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Re: Drill chuck; new China or used German?

Post by Mr Ron »

China must have the ability to produce precision parts, for spaceships and missiles, but we don't know if such items as drill press chucks used to produce them are Chinese made or are they using Albrecht, Rohm or other quality made chucks. It would be nice if someone could sneak a peek inside a Chinese factory to see what tools they use; whether imported or homemade.
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liveaboard
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Re: Drill chuck; new China or used German?

Post by liveaboard »

There are many factories in China...
When items are made with no manufacturer name on them, there is little incentive to keep the quality up.
But with this price difference, even low budget home users like me can afford it, so here we are.
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Re: Drill chuck; new China or used German?

Post by ctwo »

20 thou? Let me check my old HF drill press...
Standards are so important that everyone must have their own...
To measure is to know - Lord Kelvin
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Bill Shields
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Re: Drill chuck; new China or used German?

Post by Bill Shields »

ouch...
I have an albrecht that when it is .002 TIR I disassemble and clean it.

chuck is probably 30 years old....

I shudder to think about .020" runout on a small tap where the tap is rotating
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Harold_V
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Re: Drill chuck; new China or used German?

Post by Harold_V »

ctwo wrote: Wed Sep 14, 2022 2:37 pm 20 thou? Let me check my old HF drill press...
I don't think that was reported. "New China no-name 16mm chuck runout is 0.12mm +- 0.02" which I interpreted to mean that the chuck runs out about .12mm (.0047", with an error of ±.02mm (.00078")). I would appreciate being corrected if I am wrong.

Not great numbers, but far better than .02".

My concern would be if the chuck is properly heat treated. I know from personal experience that some chucks that are made in China are not. A soft chuck borders on being totally useless.

H
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