Plate drilling: was Drill press

[Farrell]

Hi Dave,

I forgot to address bit size. My recollection is that you use the same size
bit for the size of spring hitch pin. That is to say that an uninstalled
spring-type hitch pin is slightly expanded. If you drill a 7/16" hole for a
7/16" pin, it will make for a nice snug fit. Test it though first on a scrap
piece of iron to be sure. Are you getting the stainless pins from
McMaster-Carr?

I love drilling cast iron. It drills so smoothly and easily. Like butter.
Very satisfying.

Terry Farrell

www.farrellpiano.com

----- Original Message ----- 
From: "David Love" <davidlovepianos@comcast.net>
To: "'Pianotech'" <pianotech@ptg.org>
Sent: Wednesday, September 15, 2004 12:24 AM
Subject: Plate drilling: was Drill press


> Speaking of drilling, what's the general procedure for drilling a new
> set of holes for hitch pins in the plate.  In this case it would be
> vertical hitches, so what bit for what sized hitch and what's the best
> set up for doing this efficiently and accurately.
>
> David Love
> davidlovepianos@comcast.net
>
>
>
>
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