Clutch diaphragm compressor tool, Norton Commando, really heavy duty, better made. Made in UK. Heavy duty Norton diaphragm spring clutch compressor. Designed to compress the spring evenly while maintaining perfect flatness thus avoiding any distortion, supplied with one full nut for compression and two slim nuts for positioning which can be used to allow accurate repeat compression. Unlike many on the market this compressor will never distort. Original part number: 060999 - clutch compressor