<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "> I use a speed controller used for a router, to slow the motor speed down.<div>John Ross</div><div>Windsor, Nova  Scotia</div><div><br></div><div><br></div><div><br><div><div>On 20-01-2012, at 12:29 AM, Douglas Gregg wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>It is best to use a buffing wheel that is very soft. That is one with<br>very little stitching to hold it together. The more stitching, the<br>more aggressive the wheel will be. It is also a good idea to use a<br>small wheel if you have a 3600 RPM motor. That keeps the cutting down<br>since the speed at the periphery of the wheel is slower. I would<br>rather use a 1750 RPM motor that you can get from any old washing<br>machine and put an arbor on the shaft to take a buffing wheel.<br><br>That said, I have found that using White Diamond  polishing compound<br>works as well as any wheel and is much safer and easier. You don't<br>even have to take the keys off the piano. It is also the best brass<br>polish I have ever found. I have tried them all. It is very fast<br>working and requires minimum effort.  It is made by a small company in<br>Boone, Iowa. I have submitted it for a TT&T but have not seen it in<br>print yet.<br><a href="http://www.whitediamondamerica.com">www.whitediamondamerica.com</a><br><br>Doug Gregg<br>Classic Piano Doc<br></div></blockquote></div><br></div></body></html>