Consider the following statement with respect to relief angle of cutting tool
1. This affects the direction of chip flow
2. This reduces excessive friction between the tool & work piece
3. This affects tool life
4. This allow better access of coolant the tool – workpiece interface
Which of these statements are correct?
(a) 1 and 2 (b) 2 and 3
(c) 2 and 4 (d) 3 and 4