98ARC is calibrated: 3/32, 3/16, 1/8, 1/4, 1/2, 1, 1-3/8, 1-1/2, 3/4, 3" to the foot; One edge divided to 16ths. aluminum scales have a large profile, hollow core, and tapered edges. Printed white graduations and color inlaid furrows. Supplied in hard plastic case.