Capacity is 0 to 6" with an easy-to-read contrasting color-coded dial graduated in .01 and 64ths with inch and millimeters on bar scale. Dial is non-glare with an adjustable bezel. Caliper had a freewheeling friction roller for accurate readings and reads in fractions of an inch, great for drill bits, dowels, bolts, etc. There is also a fractional conversion table on the back.