25 Holes measurement: 25hole sizes remain constant, providing precision accuracy; The drill sizes in both inches and decimal equivalents, equivalents range from 1 1-13 mm, come with clearly marked fractions and decimal for accurate measurement
Exquisite design: heavy gauge steel construction is machined and ground to close tolerances, it can quickly and conveniently identify drill bit diameter; With a hanging hole design for easy hanging, which provides convenience for your work
Durable material: well constructed of stainless steel, it is sturdy and durable, helps to gauge the drill bits quickly and easily when working with older, unmarked drill bits and bits that are too small to fit diameter markings, practical equipment in home tools box
Proper size: each one measures approx. 16.1 x 6.5 cm, you can carry it in your bag as a simple ruler, which can draw squares