Subject: Drill chuck for .020 drill bit
From: "Ryan" email-
Date: 05/08/03 04:24 GMT Daylight Time
Message-id:

I have a requirement to drill brass set screws with a 1/64 drill bit. For
this, I use my lathe and hold the bit in a pin vice in the drill chuck. For
convenience, I would rather grip the bit directly in a drill chuck.
Therefore, I ordered a LFA chuck, model 81, which lists as having a capacity
of 0 - .250. However, this chuck will NOT tighten up to the 1/64 bit, but
it does clamp down to about .020. This chuck was about 35 dollars US...
are there any other chucks in this price range which will tighten up right
down to about .010?


Why don't you buy a pin chuck which you can then hold in the regular chuck ? I
use mine for holding carb jet drills which go down to about 0.35mm and up to
about 2mm. Second hand it was only a few quid and goes in a regular chuck if I
want to drill on a machine rather than by hand.


Dave Baker - Puma Race Engines (www.pumaracing.co.uk)
"How's life Norm?"
"Not for the squeamish, Coach" (Cheers, 1982)