<HTML> <HEAD> <TITLE>Re: [CAUT] Grinding plate counter-bearing</TITLE> </HEAD> <BODY> Hi Don, I have never done this with the pins in. An angle die grinder with various carbide burrs will work fine to hog off the majority of the material. I use burrs with several shapes – christmas tree, cylindrical and one I find particularly useful is one like this: <IMG src="cid:3394530517_6050391" >  Then, still using the die grinder switch to a 2” sanding disc. Start with 36 grit, then move up in grits. That’ll get you a decently flat surface. I don’t think I’d use a Dremel for this work mostly because I just prefer using air tools. Wear a mask. The cast iron bits will go everywhere so cover everything up well, and because you are in a home (yikes!) you might use a vacuum as you work. Alan McCoy <HR ALIGN=CENTER SIZE="3" WIDTH="95%">From: Don Mannino <<a href="dmannino@kawaius.com">dmannino@kawaius.com</a>> Reply-To: CAUTlist <<a href="caut@ptg.org">caut@ptg.org</a>> Date: Tue, 26 Jul 2011 09:11:01 -0700 To: CAUTlist <<a href="caut@ptg.org">caut@ptg.org</a>> Subject: [CAUT] Grinding plate counter-bearing Hi all,   I have a little project I need to work on, and thought I would ask for some advice.  I need to grind the treble counter-bearings off of the plate of a piano in a customer’s home.  I am hoping someone here has a good suggestion for which tool works best to give a clean removal that stays relatively flat.  I would like to avoid screwing up the plate finish nearby, and leave a flat surface that I can put a half-round on.   With the tuning pins staying in place, I’m thinking a flat grinding wheel might not fit in there.  I can use a Dremel, but am worried it will be very hard to get it smooth and level.   Keeping in mind the need to do it in the home, any suggestions?  Dremel with a specific tip, maybe?   Don Mannino RPT </BODY> </HTML>