Very superior quality steel chrome plated. The metric scale is graduated in millimeter for 12 cm and the 10-part Vernier reads is 0.1 mm. The English scale is graduated to 1/16 inch for 5 inches and its 8-part. Vernier reads to 1/28 Inch with adjusting wheel and depth gauge. Elegantly packed in card board box, with detailed working manual. Least Count 0.01 cm.