In a message dated 11/27/99 10:20:43 AM Central Standard Time, DTrue10521@xxxx writes: << I believe you can make your own wrench to remove the oil plug from a length of 5/16 square stock. It worked real well for me. >> That will work or you can take a 3/8" short socket extension and grind it down to 5/16" But my choice is to find the local Snap On dealer and have him sell you Part #PPM 410 3/8" drive 5/16" Square male adapter. Ralph Vin 1606