Chinese Keyless drill chuck

R

Rob D

Aluminum

Joined

Nov 10, 2004

Location

Midwest

• Jan 10, 2006

• #1

We had an empty 40 taper tool holder at the shop so we did a little test.

We bought a $300 keyless chuck from jacobs.

We bought a $12 keyless chuck from a sales flier that came over our fax.

The jacobs chuck ran out .003 the mystery chuck ran out .0004.

Our country is in serious s##t.

 

F

fastolds

Hot Rolled

Joined

Jan 14, 2004

Location

Fulton, IL

• Jan 10, 2006

• #2

I have had trouble keeping those on the tool holder. They seem to want to fly off from time to time.

 

M

Mike W

Stainless

Joined

Jan 12, 2003

Location

Central Kali.

• Jan 11, 2006

• #3

I just bought 3 key type 5/8" chucks for $9.50 each. I still need to check the runout but a quick check doesn't show any problems, very smooth to turn. I have a 1970's Taiwan chuck that had little runout but felt rough when I turned it. I finally took it apart and found that the adjusting ring must have not been heat treated right as it was wearing away and the particles were making it hard to turn.

 

EPAIII

Diamond

Joined

Nov 23, 2003

Location

Beaumont, TX, USA

• Jan 11, 2006

• #4

Wal-Mart management has reached Jacobs.

Paul A.

 

J

Jeff

Hot Rolled

Joined

Jun 11, 2001

Location

WI

• Jan 11, 2006

• #5

If it "works" and lasts 30 years like the average Jacobs chuck we ARE in trouble. The little industry that is left here can't afford something that doesn't "work" properly, even at the cost differential mentioned. The "down time" alone would make a junk tool 10x more expensive in a very short time.

 

D

Dave K

Diamond

Joined

Mar 21, 2004

Location

Waukesha, WI

• Jan 11, 2006

• #6

Uh, hold on here. How extensivly did you check this? I mean, did you check each tapered arbor it was on to make sure the holder or shank had equal runout before you checked the chuck? If not, it's an in-accurate comparison.

Also, I hope you needed that $300.00 chuck for something other than this test. If not, I need to start charging more.

 

L

lego boy

Aluminum

Joined

Jan 29, 2005

Location

Alberta

• Jan 11, 2006

• #7

Not to hijack this thread or anything but why are Jacobs drill chuck arbors not hardened yet even some of the cheep china ones are?

 

R

Rob D

Aluminum

Joined

Nov 10, 2004

Location

Midwest

• Jan 12, 2006

• #8

Dave we checked both chucks on the same arbor cheap one first (Planned on keeping the jacobs).

Thought we mave have messed up the arbor after taking off the cheap one, so we tried several arbors with the same results.

I sent the jacobs chuck back for a replacment.

We are going to use both to see how each is after a year or two.
I'll let you know.

Rob

 

C

cinematographer

Plastic

Joined

Dec 2, 2015

Location

California, USA

• Aug 28, 2017

• #9

So how did they end up after 11 years, lol

Rob D said:

We are going to use both to see how each is after a year or two.
I'll let you know.

Rob

Click to expand...

 

D

DMF_TomB

Diamond

Joined

Dec 13, 2008

Location

Rochester, NY, USA

• Aug 28, 2017

• #10

Rob D said:

We had an empty 40 taper tool holder at the shop so we did a little test.

We bought a $300 keyless chuck from jacobs.

We bought a $12 keyless chuck from a sales flier that came over our fax.

The jacobs chuck ran out .003 the mystery chuck ran out .0004.

Our country is in serious s##t.

Click to expand...

.
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usually i spray electrical contact cleaner working chuck jaws till all the grease and gunk drips out.
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chuck up rod in lathe and turn .001 off so no runout and then put drill chuck on it and indicate the drill chuck mount taper. usually it is good. then i mount the drill chuck arbor on to drill chuck and indicate that. usually runout coming from arbor or gunk dirt grease in the chuck