Observation

Candidates were asked to make a neat freehand pictorial sketch of a twist drill.  Most of the candidates that attempted this question could not draw properly with the lip, land and flute in place.

Candidates were expected to do the following:

            FREEHAND SKETCH OF THE PICTORIAL VIEW OF A TWIST DRILL
(i)         sketch the pictorial view;       
(ii)        sketch for resemblance;
(iii)       sketch to proportion;
(iv)       sketch the lip;
(v)        sketch the lip angle ;
(vi)       sketch the land;
(vii)      sketch the flute;
(viii)     sketch the shank parallel/taper.

The solution is shown below: