There is a vast difference in the use of drawing tools and free-hand drawing.
Principles of Proportion: Measurements by ruler and free-hand.
She knows all the free-hand movements and the "Anvil Chorus" with the dumb-bells.
All free-hand designs are bound to show a difference in outline.
Figs. 30–33 are free-hand drawings from magnified specimens.
Cut a free-hand pattern ...