Pin depth.

[David Love]

Another way is to attach a piece of piano wire to the drill so that it 
extends down near the drill bit.  You can attach the wire to the drill with 
tape.  Set the wire so that the distance from the end of the wire to the end 
of the drill bit is the depth that you want.  When the drill penetrates to 
that depth, the piece of piano wire will touch the bridge.

David Love


>From: jolly roger <baldyam@sk.sympatico.ca>
>Reply-To: pianotech@ptg.org
>To: "pianotech@ptg.org" <pianotech@ptg.org>
>Subject: Pin depth.
>Date: Sat, 20 Jan 2001 23:53:38 -0600
>
>  I tried some thing new today. Drilling a bridge cap to install new pins.
>How to drill all the holes to the same depth so I don't have to file the
>tops of the pins to make them even.
>I used 3 layers of heat shrink sleeving on the drill bit, to both mark the
>depth and act as a depth collar.
>It's availiable in a variety of bright colour's,  I chose yellow, does the
>job very accurately.
>You need to stand the pins on end together to sort, and toss out, the odd
>short or long pins.
>Heat shrink sleeving is availiable from Radio Shack or good electronics
>suppliers.
>
>Hope this is useful
>Roger
>

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