Clean. Tec 330, Chip Fan shaft-3/4 Item No. 34330 Brand new open package, old stock that was sitting around in the shop. Please examine all the pictures and ask any questions that you may have. The largest version of the Clean. Tec chip fan with a shaft diameter of 19.05 mm (3/4 inch), is particularly suitable for cleaning large areas and is, therefore, more likely to be used in larger machines. By controlling the speed of the machine spindle, it opens and closes its blades and efficiently frees workpieces and fixtures from chips and cooling. SOCKET DIAMETER 19.05 mm (0.75″) SOCKET LENGTH 42 mm (1.65″) WING LENGTH 166 mm (6.54″) TOTAL LENGTH 208 mm (8.19″) DIAMETER WITH CLOSED WINGS 68 mm (2.68″) DIAMETER WITH OPEN WINGS 330 mm (12.99″) RPM RANGE 3000 – 8000 R/min APPLICATION large-scale PACKAGING UNIT 1 Piece WEIGHT 0.21 kg (0.46 lbs) MATERIAL Plastic.