"
Very
consistant
hardness.
No
hard
spots
or
weak
spots
or
imperfections
in
lead,
also
resist
breakage-good
when
you
drop
the
lead
holder
on
the
floor.
..." more...
Indispensable for professionals who demand precise drafting. Superior in both quality and strength. Available in several degrees, all are 2 mm diameter and fit any standard lead clutch.