BeadSmith Digital Caliper - Measures Inner/Outer Diameters In Inches/Millimeters
Use these digital calipers for accurate measuring results. These calipers give easy-to-read results in large font, convert mm to inches with the touch of a button. Use the top scale for inner diameter & the bottom scale for outer & wire diameters. With these digital calipers, you can measure objects up to 4 inches or 100mm. Save batteries with the automatic shut-off feature.