Has the drive wheel on your Tormek given up after many years of faithful service? The Tormek R-23 Drive Wheel with Rubber Ring for T-8 is a spare part that breathes new life into your Tormek. This drive wheel fits the Tormek T-8 Original and Tormek T-8 Custom sharpening machines, as well as older machine models with a grinding wheel 250 mm (9 7/8") in diameter.