6" Digital Caliper. Digital calipers allow you to quickly and accurately gauge your measurement. No more squinting and bending close, trying to squeeze into bizarre spaces. Craftsmen and women who use digital calipers find that their work gets done more quickly and to a higher degree of exactitude. SAE 0" to 6"and METRIC 0 to 155MM Extra Large LCD Display Extra Battery Free Case Accuracy +/- .02mm Built in Data Port