The Norton Saint-Gobain Abrasives 5SG60-JVS Grinding Wheel is a 7'' x 1/2'' x 1-1/4'' wheel with a maximum operating speed of 3600 RPM. The part number 5SG60-JVS identifies this wheel in Norton’s 5SG60 series and it is designed for use on grinders that accept a 1-1/4'' bore.
