44. Calculate the MRR (Material Removal Rate) and HP (Horse Power) for a .750 diameter drill with a 200 SFPM at .006 IPR (Inches Per Revolution). MRR = HP= 45. Calculate the speed (RPM) and feed (inches per minute) for a milling mild steel with a 12 tooth, 3.5 inch diameter cutter using a chip load of 0.005 inches and a cutting speed of 90 SFPM. RPM = IPM= 46. Calculate the feed in meters per minute for a 10 mm diameter, 8 tooth helical milling cutter when machining a cast iron work piece. Use a chip load of 0.25mm and cutting speed of 20 meters per minute. RPM = M/min= 47. Calculate the taper per foot (TPF) of a taper with a large end diameter of 1.75 inches and a small end diameter of 1.5 inches and a length of taper of 6 inches. 48. What is the center line angle of the above taper? TPF = Center Line Angle =