On Fri, 08 Apr 2011 21:17:56 -0500, Tim Wescott
wrote:

I just messed up my only #71 drill bit -- boo hoo.

What's the name of the gizmo that you use when you have a Great Big Drill
Press, and you need to drill an itty bitty hole?

The one that transmits rotation to the drill, but lets you be the one
that exerts downward force on it.

Alternate suggestions for methods of drilling itty bitty holes will also
be gratefully accepted (Time to build my own plunge EDM machine?)

And, any suggestions of sources for drill bits, and types? McMaster has
a bunch. I need some to drill aluminum, some to drill really thin (15 or
30 mil) birch plywood.
==========
see
http://www.use-enco.com/CGI/INPDFF?P...MITEM=290-1291
http://www.use-enco.com/CGI/INSRAR?PMSECT=0000000605
and
http://www.jtsmach.com/jtswebshop/Workholding/WH147.asp
http://www1.mscdirect.com/eCommerce/...s+%26+Adapters
http://www.amazon.com/AF-22-0-0008-L.../dp/B002KVIKL8
http://www.penntoolco.com/catalog/pr...categoryID=181

http://www.micromark.com/No-71-Drill...of-6,6654.html
http://www.hermanscentral.com/produc...fm?sid=FRoogle


-- Unka George (George McDuffee)
...............................
The past is a foreign country;
they do things differently there.
L. P. Hartley (1895-1972), British author.
The Go-Between, Prologue (1953).