I just purchased a glow plug reamer tool for my 606 engine, from Baum. $41.17. They have plenty in stock. This tool is not listed on the web site, so you will need to phone the order in. The part number is: B606-0053
Baum Tools Unlimited Inc.
P.O. Box 5867
Sarasota, FL 34277
800-848-6657 toll free US and Canada
+1 941-927-1414 international
+1 941-927-1612 fax
www.baumtools.com