Author Question: What is the RPM for a 1/4 (.250 ) inch diameter, four flute end mill at a cutting seed of 200 SFPM? ... (Read 77 times)

Lisaclaire · **on:** Jul 26, 2018

What is the RPM for a 1/4 (.250 ) inch diameter, four flute end mill at a cutting seed of 200 SFPM?

A) 1200 B) 2200 C) 3200 D) 4200

Question 2

Holes can be drilled on a vertical milling machine by:

A) Using the sensitive quill feed B) Raising the knee of the machine
C) Using the quill power feed D) All of the above