Gallery, Projects and General > How do I??

drill chuck internal taper with matching arbour

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John Rudd:
Advice sought here chaps... :dremel:

I have a standard 10mm dril chuck mounted on an MT3 arbour..but the problem is the taper on the chuck and the mating taper on the arbour keeps coming apart.. :doh:

I've tried pressing the two together but after use the chuck sometimes fall off  the arbour...
I guess the two tapers may not be perfect giving rise to this, what should I do to resolve this?

DaveH:
Hi John,

The first thing - which I'm sure you have,  is to check for any "marring"  on either of the tapers.  Some engineers blue could be used to see how well the two tapers fit.

 :beer:
DaveH

Mikey:
Hey John,
Might want to have a look at this one: http://www.machinistblog.com/?s=drill+chuck+installing&submit=Search

Hope that solves it.

Mikey

Fergus OMore:
There's no such thing as a 'Standard' taper on a drill chuck - there are several standard tapers. :doh:

Stilldrillin:
John.
Mount your drill chuck's MT3 taper in place of your lathe chuck.

You can then adjust the taper fit into the drill chuck body, using a diamond file, or whetstone.

I've done it several times, to gain as much mini mill vertical clearance as possible......

It works!  :thumbup:

David D

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