â– Nylon-coated blade for superior durability and rust resistance.â– 3X gearing for quick rewind (part numbers that end in 3X).â– High-impact resistant case with full-rubber, non-slip grip.â– Ideal for real estate agents, general surveying, civil engineering, building construction, highway and road construction, home building, mining, etc.â– 3/8-inch wide blade -— bends easily but not affected by wind like wider tapes