Hi,<br>I have been going through my diamond inventory and realize that I have quite a lot of diamonds in the 400-800 range that have become pretty thin but still have some edge left (these are for the most part typhoons).  I am wondering how far down folks use thinned out diamonds before they are useless or not optimum for a job. I am about to start a large terrazzo job and would like to get some more use from these, but am a little nervous.  Also, I have quite a lot of triple thick diamonds in 400 and 800 and want to know if they are good for terrazzo.  I have been using the typhoons on concrete polishing jobs recently as recommended by a few sources (3&quot; diamonds on my 9 head klindex planetary).  The triple thicks were not recommended for concrete.  I know that terrazzo has a concrete element to it but probably 80% marble component.  Am I safe to use them on terrazzo?  Am I safe to use them on a 9 head planetary (or maybe the planetary is overkill for a terrazzo job).<br>
Thanks,<br>ps really wish I could have made it to the cruise but the stars were against me this year.<br><br>Baird<br clear="all"><br>-- <br>________________________________________<br>From the desk of<br>Baird Standish<br>
Managing Partner<br>Facility Specialists, LLC<br>1616 Walnut St.<br>Philadelphia, PA 19103<br>Phone: 215-732-7505<br>Fax: 215-546-9160<br>