Specification: Material: Stainless steel Model: No. 29 Size: 225x75x2mm/8.86x2.95x0.08inch Color: silver Packing quantity: 1PC stainless steel drill bit gauge Features Stainless steel structure, strong and durable. Clearly marked fractions and decimals for accurate measurement. The equivalent range is 1/16" to 1/2" to 1/64". Hanging hole design makes it easy to hang and work. Can be used for drill bit measurement fast and convenient