Thank you, Alistair.  We do HO-gauge model trains so we have plenty of
small drills.

John

On Sun, Dec 11, 2016 at 11:30 PM, Alistair Bell wrote:

> Jeeze John, I threw out a bunch of HPLC fittings some years ago. Still
> have a few plastic odds and ends fittings which I think were from a
> beckman, but god I can't recall.
> Do you have a good set of small drills? Can you sneak up with drill
> size to drill out most of broken part and no damage femal threads?
>
> Alistair
>
>
>
>
>
>> On Dec 11, 2016, at 7:50 PM, John Lauterbach
>> <john@JHL.MGACOXMAIL.COM> wrote:
>>
>> I am hoping for the wisdom of the list is locating an easy-out or
>> similar tool for SS 10-32 bolts.  If any of you have worked with high
>> performance liquid chromatography (HPLC) equipment (particularly that
>> made by Waters Associates), you are probably familiar with so-called
>> ferrule nuts.  These are hex-head 10-32 SS bolts with a hole down the
>> center to clear 1/16-inch OD SS tubing.  Basically the 1/16-inch
>> tubing
>> is connected to pumps, columns, etc., with the ferrule nut followed
>> by a
>> ferrule.  You screw the ferrule nut -- ferule combination into a
>> specially machine fitting and tighten it down to make a tight seal.
>> This passed summer, I bought a collection of 1980s-vintage  HPLC
>> equipment to teach my Son lab instrument repair and computer
>> interfacing.  In the process of letting him learn by doing, he
>> snapped
>> the heads off a couple of the ferrule nuts leaving the end and the
>> ferrule stuck in the equipment.  Parts involved are NLA so there is
>> need
>> for a way of extracting the remaining part of the ferrule nut and
>> ferrule.  I can get the parts to a Dremel drill press to drill the
>> tubing out of the broken nut, but then need something to extract the
>> remainder of the ferrule nut.  Are there miniature easy-outs or
>> similar
>> tools?
>>
>> Thank you,
>>
>> John