The iFixit 6-Inch Precision Digital Caliper delivers exact measurements down to 0.0005" with hardened steel jaws and dual-unit display (inches/millimeters). Built for technicians, engineers, and repair professionals, this rugged tool features IP54 water and dust resistance, ±0.001" accuracy, and comes ready to use with included SR-44 batteries. Perfect for component tolerance verification, fastener identification, and quality control across repair and assembly projects. Backed by iFixit's Lifetime Guarantee.