Question 5

               

 (a)      List two lathe tools that can be held in each of the following:

1. tailstock;
2. cross slide;
3. headstock.

 

(b)       State one reason for carrying out each of the following activities:

1. centre punching before drilling;
2. checking the drilling speed before starting the machine;
3. drilling pilot holes before drilling larger holes.

 

(c)        State two factors that cause changes in design.