Replacement Leads for Pica Big Dry Carpenter's Mechanical Pencil

Both are the same black 2B grade; the water-resistant version is sold as a separate option for marking that needs to hold up in damp or wet conditions, rather than replacing the standard 2B outright.

The 2H grade is harder than the standard HB or 2B leads and is meant for finer lines on dry lumber, giving a crisper mark than the softer grades.

The 10H is the hardest lead offered for this pencil, hard enough for marking stonework, while the softer HB and 2B grades are meant for everyday lumber marking.

These replacement leads for the Pica Big Dry carpenter's mechanical pencil come in HB (a black 12-pack or a mixed pack of eight black and four white for contrast on dark surfaces), a water-resistant 2B, a harder 2H for finer lines on dry lumber and a very hard 10H for marking stonework.