The broaching machine is used to enlarge a circular hole of radius 22 mm to a radius of 26 mm on a mild steel plate of thickness of 80 mm, a rise per roughing tooth and semi-finishing tooth are 0.01 mm and 0.02 mm used and the pitch of the roughing teeth, semi-finishing teeth and finishing teeth are 14 mm, 15 mm and 16 mm respectively. If there is 4 no. of finishing teeth then determine the minimum possible time in which one part can be machined if the cutting speed is 0.53 meter/minute.