Staedtler Mechanical Pencils
Staedtler make some great mechanical pencils, for both writing and technical drawing. We're cheating just very slightly, and including their classic clutch pencils in here - the Mars Technico 780C is one of the best loved clutch pencils of all time, while its sibling, the 788C takes away the knurled metal grip to meet a lower price point and slightly lighter weight.