Re: tip of the month #7

From: Frank Bemelman (f.bemelmanx_at_xs4all.invalid.nl)
Date: 10/22/04 

Date: Fri, 22 Oct 2004 23:16:07 +0200

"Leon Heller" <leon_heller@hotmail.com> schreef in bericht
news:41796940$0$24201$cc9e4d1f@news-text.dial.pipex.com...
> "Frank Bemelman" <f.bemelmanx@xs4all.invalid.nl> wrote in message
> news:4178cbe5$0$65124$e4fe514c@news.xs4all.nl...
> > Drilling large holes in plastic cases is always great
> > fun. Either the workpiece gets launched when the drill
> > suddenly grips, or it climbs up in the drill, or giving
> > that sort of hexagon shaped hole you didn't want.
> >
> > This morning I discovered a new method. Drill a small
> > hole of 3 mm. This goes without problems.
> >
> > Now take a *wood* drill, a round one, not the speed type,
> > although that may work too. Put the drill in reverse.
> > Drill the hole. Enjoy the result. Say 'Eureka'.
>
> I use a taper drill. Works very well for plastic and thin metal.

You have to know when to stop, with tapered drills. And I often
manage to ruin them quickly, in metal. Terry mentioned step drills,
I have one, but with rather large steps. I had to drill 25 boxes,
a very unusual event for me. Kept me busy for the whole day,
almost. I guess the best method is to let someone else drill
them ;) 

-- 
Thanks, Frank.
(remove 'x' and 'invalid' when replying by email)

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