"
These
leads,
as
far
as
I
can
tell,
are
flawless.
They
are
very
convenient
for
the
field
since
I
can
interchange
them
in
the
lead
holder,
drawing
on
s
..." 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.