width 12 mm at the hinges and 6 mm at the outer tip

width 6 mm at the hinges and 12 mm at the outer tip

width 10 mm at the hinges and 5 mm at the outer tip

width 5 mm at the hinges and 10 mm at the outer tip

drill equidistant holes on a circular flange

manufacture components of awkward shape

drill components with blind holes

None of the above

1/4 inch per foot

1/2 inch per foot

5/8 inch per foot

3/4 inch per foot

lead screw has metric thread and the thread to be cut also metric thread

lead screw has English thread and the thread to be cut metric thread

lead screw has English thread and the thread to be cut also English thread

None of the above

it helps in forming of chips

it decreases the vibration and noise

it increases tool life and surface finish

it prevents forming of built up edge