Increasing the SFPM by 50 percent over cutting speeds recommended for carbides will:
A) Decrease tool life by over 60 percent
B) Have no appreciable effect on carbide tool life
C) Have less effect on the tool life than increasing the recommended rate of feed by 50 percent
D) Decrease tool life by over 80 percent
Question 2
The speed for hack sawing is generally ________ strokes per minute?
A) 30 B) 50 C) 70 D) 90