Either chalk or cutting oil will do pretty good at preventing pining of files, but when you least expect it, whammo, there suddenly appears a scratch. Keith's method is probably the only way for 100% insurance against it happening. Keep your file card handy! For those who haven't had the opportunity to become acquainted with Keith's beautiful work, I suggest you look at the photos he has posted here and stand amazed: http://smg.photobucket.com/albums/v421/Keithhs/Reynolds-Allis%20Corliss/ Jesse in Tennessee USA MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.